858732520

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{2213}}^1$

素因数の和:2422

約数の個数: 64

約数和(自身を含む): 1972674000

約数和(自身を除く): 1113941480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 109, 178, 218, 356, 436, 445, 545, 712, 872, 890, 1090, 1780, 2180, 2213, 3560, 4360, 4426, 8852, 9701, 11065, 17704, 19402, 22130, 38804, 44260, 48505, 77608, 88520, 97010, 194020, 196957, 241217, 388040, 393914, 482434, 787828, 964868, 984785, 1206085, 1575656, 1929736, 1969570, 2412170, 3939140, 4824340, 7878280, 9648680, 21468313, 42936626, 85873252, 107341565, 171746504, 214683130, 429366260, 858732520]

約数ペア:

[(1, 858732520), (2, 429366260), (4, 214683130), (5, 171746504), (8, 107341565), (10, 85873252), (20, 42936626), (40, 21468313), (89, 9648680), (109, 7878280), (178, 4824340), (218, 3939140), (356, 2412170), (436, 1969570), (445, 1929736), (545, 1575656), (712, 1206085), (872, 984785), (890, 964868), (1090, 787828), (1780, 482434), (2180, 393914), (2213, 388040), (3560, 241217), (4360, 196957), (4426, 194020), (8852, 97010), (9701, 88520), (11065, 77608), (17704, 48505), (19402, 44260), (22130, 38804)]