64987600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:557

約数の個数: 120

約数和(自身を含む): 174363840

約数和(自身を除く): 109376240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 34, 38, 40, 50, 68, 76, 80, 85, 95, 100, 136, 152, 170, 190, 200, 272, 304, 323, 340, 380, 400, 425, 475, 503, 646, 680, 760, 850, 950, 1006, 1292, 1360, 1520, 1615, 1700, 1900, 2012, 2515, 2584, 3230, 3400, 3800, 4024, 5030, 5168, 6460, 6800, 7600, 8048, 8075, 8551, 9557, 10060, 12575, 12920, 16150, 17102, 19114, 20120, 25150, 25840, 32300, 34204, 38228, 40240, 42755, 47785, 50300, 64600, 68408, 76456, 85510, 95570, 100600, 129200, 136816, 152912, 162469, 171020, 191140, 201200, 213775, 238925, 324938, 342040, 382280, 427550, 477850, 649876, 684080, 764560, 812345, 855100, 955700, 1299752, 1624690, 1710200, 1911400, 2599504, 3249380, 3420400, 3822800, 4061725, 6498760, 8123450, 12997520, 16246900, 32493800, 64987600]

約数ペア:

[(1, 64987600), (2, 32493800), (4, 16246900), (5, 12997520), (8, 8123450), (10, 6498760), (16, 4061725), (17, 3822800), (19, 3420400), (20, 3249380), (25, 2599504), (34, 1911400), (38, 1710200), (40, 1624690), (50, 1299752), (68, 955700), (76, 855100), (80, 812345), (85, 764560), (95, 684080), (100, 649876), (136, 477850), (152, 427550), (170, 382280), (190, 342040), (200, 324938), (272, 238925), (304, 213775), (323, 201200), (340, 191140), (380, 171020), (400, 162469), (425, 152912), (475, 136816), (503, 129200), (646, 100600), (680, 95570), (760, 85510), (850, 76456), (950, 68408), (1006, 64600), (1292, 50300), (1360, 47785), (1520, 42755), (1615, 40240), (1700, 38228), (1900, 34204), (2012, 32300), (2515, 25840), (2584, 25150), (3230, 20120), (3400, 19114), (3800, 17102), (4024, 16150), (5030, 12920), (5168, 12575), (6460, 10060), (6800, 9557), (7600, 8551), (8048, 8075)]