261764640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^3\times {\mathrm{37}}^1$

素因数の和:109

約数の個数: 288

約数和(自身を含む): 974741040

約数和(自身を除く): 712976400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 37, 40, 45, 48, 51, 60, 68, 72, 74, 80, 85, 90, 96, 102, 111, 120, 136, 144, 148, 153, 160, 170, 180, 185, 204, 222, 240, 255, 272, 288, 289, 296, 306, 333, 340, 360, 370, 408, 444, 480, 510, 544, 555, 578, 592, 612, 629, 666, 680, 720, 740, 765, 816, 867, 888, 1020, 1110, 1156, 1184, 1224, 1258, 1332, 1360, 1440, 1445, 1480, 1530, 1632, 1665, 1734, 1776, 1887, 2040, 2220, 2312, 2448, 2516, 2601, 2664, 2720, 2890, 2960, 3060, 3145, 3330, 3468, 3552, 3774, 4080, 4335, 4440, 4624, 4896, 4913, 5032, 5202, 5328, 5661, 5780, 5920, 6120, 6290, 6660, 6936, 7548, 8160, 8670, 8880, 9248, 9435, 9826, 10064, 10404, 10656, 10693, 11322, 11560, 12240, 12580, 13005, 13320, 13872, 14739, 15096, 17340, 17760, 18870, 19652, 20128, 20808, 21386, 22644, 23120, 24480, 24565, 25160, 26010, 26640, 27744, 28305, 29478, 30192, 32079, 34680, 37740, 39304, 41616, 42772, 44217, 45288, 46240, 49130, 50320, 52020, 53280, 53465, 56610, 58956, 60384, 64158, 69360, 73695, 75480, 78608, 83232, 85544, 88434, 90576, 96237, 98260, 100640, 104040, 106930, 113220, 117912, 128316, 138720, 147390, 150960, 157216, 160395, 171088, 176868, 181152, 181781, 192474, 196520, 208080, 213860, 221085, 226440, 235824, 256632, 294780, 301920, 320790, 342176, 353736, 363562, 384948, 393040, 416160, 427720, 442170, 452880, 471648, 481185, 513264, 545343, 589560, 641580, 707472, 727124, 769896, 786080, 855440, 884340, 905760, 908905, 962370, 1026528, 1090686, 1179120, 1283160, 1414944, 1454248, 1539792, 1636029, 1710880, 1768680, 1817810, 1924740, 2181372, 2358240, 2566320, 2726715, 2908496, 3079584, 3272058, 3537360, 3635620, 3849480, 4362744, 5132640, 5453430, 5816992, 6544116, 7074720, 7271240, 7698960, 8180145, 8725488, 10906860, 13088232, 14542480, 15397920, 16360290, 17450976, 21813720, 26176464, 29084960, 32720580, 43627440, 52352928, 65441160, 87254880, 130882320, 261764640]

約数ペア:

[(1, 261764640), (2, 130882320), (3, 87254880), (4, 65441160), (5, 52352928), (6, 43627440), (8, 32720580), (9, 29084960), (10, 26176464), (12, 21813720), (15, 17450976), (16, 16360290), (17, 15397920), (18, 14542480), (20, 13088232), (24, 10906860), (30, 8725488), (32, 8180145), (34, 7698960), (36, 7271240), (37, 7074720), (40, 6544116), (45, 5816992), (48, 5453430), (51, 5132640), (60, 4362744), (68, 3849480), (72, 3635620), (74, 3537360), (80, 3272058), (85, 3079584), (90, 2908496), (96, 2726715), (102, 2566320), (111, 2358240), (120, 2181372), (136, 1924740), (144, 1817810), (148, 1768680), (153, 1710880), (160, 1636029), (170, 1539792), (180, 1454248), (185, 1414944), (204, 1283160), (222, 1179120), (240, 1090686), (255, 1026528), (272, 962370), (288, 908905), (289, 905760), (296, 884340), (306, 855440), (333, 786080), (340, 769896), (360, 727124), (370, 707472), (408, 641580), (444, 589560), (480, 545343), (510, 513264), (544, 481185), (555, 471648), (578, 452880), (592, 442170), (612, 427720), (629, 416160), (666, 393040), (680, 384948), (720, 363562), (740, 353736), (765, 342176), (816, 320790), (867, 301920), (888, 294780), (1020, 256632), (1110, 235824), (1156, 226440), (1184, 221085), (1224, 213860), (1258, 208080), (1332, 196520), (1360, 192474), (1440, 181781), (1445, 181152), (1480, 176868), (1530, 171088), (1632, 160395), (1665, 157216), (1734, 150960), (1776, 147390), (1887, 138720), (2040, 128316), (2220, 117912), (2312, 113220), (2448, 106930), (2516, 104040), (2601, 100640), (2664, 98260), (2720, 96237), (2890, 90576), (2960, 88434), (3060, 85544), (3145, 83232), (3330, 78608), (3468, 75480), (3552, 73695), (3774, 69360), (4080, 64158), (4335, 60384), (4440, 58956), (4624, 56610), (4896, 53465), (4913, 53280), (5032, 52020), (5202, 50320), (5328, 49130), (5661, 46240), (5780, 45288), (5920, 44217), (6120, 42772), (6290, 41616), (6660, 39304), (6936, 37740), (7548, 34680), (8160, 32079), (8670, 30192), (8880, 29478), (9248, 28305), (9435, 27744), (9826, 26640), (10064, 26010), (10404, 25160), (10656, 24565), (10693, 24480), (11322, 23120), (11560, 22644), (12240, 21386), (12580, 20808), (13005, 20128), (13320, 19652), (13872, 18870), (14739, 17760), (15096, 17340)]