781608320

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:273

約数の個数: 192

約数和(自身を含む): 2098548000

約数和(自身を除く): 1316939680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 32, 34, 38, 40, 64, 68, 76, 80, 85, 95, 128, 136, 152, 160, 170, 190, 199, 272, 304, 320, 323, 340, 361, 380, 398, 544, 608, 640, 646, 680, 722, 760, 796, 995, 1088, 1216, 1292, 1360, 1444, 1520, 1592, 1615, 1805, 1990, 2176, 2432, 2584, 2720, 2888, 3040, 3184, 3230, 3383, 3610, 3781, 3980, 5168, 5440, 5776, 6080, 6137, 6368, 6460, 6766, 7220, 7562, 7960, 10336, 10880, 11552, 12160, 12274, 12736, 12920, 13532, 14440, 15124, 15920, 16915, 18905, 20672, 23104, 24548, 25472, 25840, 27064, 28880, 30248, 30685, 31840, 33830, 37810, 41344, 46208, 49096, 51680, 54128, 57760, 60496, 61370, 63680, 64277, 67660, 71839, 75620, 98192, 103360, 108256, 115520, 120992, 122740, 127360, 128554, 135320, 143678, 151240, 196384, 206720, 216512, 231040, 241984, 245480, 257108, 270640, 287356, 302480, 321385, 359195, 392768, 433024, 483968, 490960, 514216, 541280, 574712, 604960, 642770, 718390, 785536, 981920, 1028432, 1082560, 1149424, 1209920, 1221263, 1285540, 1436780, 1963840, 2056864, 2165120, 2298848, 2419840, 2442526, 2571080, 2873560, 3927680, 4113728, 4597696, 4885052, 5142160, 5747120, 6106315, 8227456, 9195392, 9770104, 10284320, 11494240, 12212630, 19540208, 20568640, 22988480, 24425260, 39080416, 41137280, 45976960, 48850520, 78160832, 97701040, 156321664, 195402080, 390804160, 781608320]

約数ペア:

[(1, 781608320), (2, 390804160), (4, 195402080), (5, 156321664), (8, 97701040), (10, 78160832), (16, 48850520), (17, 45976960), (19, 41137280), (20, 39080416), (32, 24425260), (34, 22988480), (38, 20568640), (40, 19540208), (64, 12212630), (68, 11494240), (76, 10284320), (80, 9770104), (85, 9195392), (95, 8227456), (128, 6106315), (136, 5747120), (152, 5142160), (160, 4885052), (170, 4597696), (190, 4113728), (199, 3927680), (272, 2873560), (304, 2571080), (320, 2442526), (323, 2419840), (340, 2298848), (361, 2165120), (380, 2056864), (398, 1963840), (544, 1436780), (608, 1285540), (640, 1221263), (646, 1209920), (680, 1149424), (722, 1082560), (760, 1028432), (796, 981920), (995, 785536), (1088, 718390), (1216, 642770), (1292, 604960), (1360, 574712), (1444, 541280), (1520, 514216), (1592, 490960), (1615, 483968), (1805, 433024), (1990, 392768), (2176, 359195), (2432, 321385), (2584, 302480), (2720, 287356), (2888, 270640), (3040, 257108), (3184, 245480), (3230, 241984), (3383, 231040), (3610, 216512), (3781, 206720), (3980, 196384), (5168, 151240), (5440, 143678), (5776, 135320), (6080, 128554), (6137, 127360), (6368, 122740), (6460, 120992), (6766, 115520), (7220, 108256), (7562, 103360), (7960, 98192), (10336, 75620), (10880, 71839), (11552, 67660), (12160, 64277), (12274, 63680), (12736, 61370), (12920, 60496), (13532, 57760), (14440, 54128), (15124, 51680), (15920, 49096), (16915, 46208), (18905, 41344), (20672, 37810), (23104, 33830), (24548, 31840), (25472, 30685), (25840, 30248), (27064, 28880)]