1997120880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{24989}}^1$

素因数の和:25048

約数の個数: 160

約数和(自身を含む): 7065172800

約数和(自身を除く): 5068051920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 37, 40, 45, 48, 54, 60, 72, 74, 80, 90, 108, 111, 120, 135, 144, 148, 180, 185, 216, 222, 240, 270, 296, 333, 360, 370, 432, 444, 540, 555, 592, 666, 720, 740, 888, 999, 1080, 1110, 1332, 1480, 1665, 1776, 1998, 2160, 2220, 2664, 2960, 3330, 3996, 4440, 4995, 5328, 6660, 7992, 8880, 9990, 13320, 15984, 19980, 24989, 26640, 39960, 49978, 74967, 79920, 99956, 124945, 149934, 199912, 224901, 249890, 299868, 374835, 399824, 449802, 499780, 599736, 674703, 749670, 899604, 924593, 999560, 1124505, 1199472, 1349406, 1499340, 1799208, 1849186, 1999120, 2249010, 2698812, 2773779, 2998680, 3373515, 3598416, 3698372, 4498020, 4622965, 5397624, 5547558, 5997360, 6747030, 7396744, 8321337, 8996040, 9245930, 10795248, 11095116, 13494060, 13868895, 14793488, 16642674, 17992080, 18491860, 22190232, 24964011, 26988120, 27737790, 33285348, 36983720, 41606685, 44380464, 49928022, 53976240, 55475580, 66570696, 73967440, 83213370, 99856044, 110951160, 124820055, 133141392, 166426740, 199712088, 221902320, 249640110, 332853480, 399424176, 499280220, 665706960, 998560440, 1997120880]

約数ペア:

[(1, 1997120880), (2, 998560440), (3, 665706960), (4, 499280220), (5, 399424176), (6, 332853480), (8, 249640110), (9, 221902320), (10, 199712088), (12, 166426740), (15, 133141392), (16, 124820055), (18, 110951160), (20, 99856044), (24, 83213370), (27, 73967440), (30, 66570696), (36, 55475580), (37, 53976240), (40, 49928022), (45, 44380464), (48, 41606685), (54, 36983720), (60, 33285348), (72, 27737790), (74, 26988120), (80, 24964011), (90, 22190232), (108, 18491860), (111, 17992080), (120, 16642674), (135, 14793488), (144, 13868895), (148, 13494060), (180, 11095116), (185, 10795248), (216, 9245930), (222, 8996040), (240, 8321337), (270, 7396744), (296, 6747030), (333, 5997360), (360, 5547558), (370, 5397624), (432, 4622965), (444, 4498020), (540, 3698372), (555, 3598416), (592, 3373515), (666, 2998680), (720, 2773779), (740, 2698812), (888, 2249010), (999, 1999120), (1080, 1849186), (1110, 1799208), (1332, 1499340), (1480, 1349406), (1665, 1199472), (1776, 1124505), (1998, 999560), (2160, 924593), (2220, 899604), (2664, 749670), (2960, 674703), (3330, 599736), (3996, 499780), (4440, 449802), (4995, 399824), (5328, 374835), (6660, 299868), (7992, 249890), (8880, 224901), (9990, 199912), (13320, 149934), (15984, 124945), (19980, 99956), (24989, 79920), (26640, 74967), (39960, 49978)]