157120400

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12671}}^1$

素因数の和:12720

約数の個数: 60

約数和(自身を含む): 389689344

約数和(自身を除く): 232568944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 12671, 25342, 50684, 63355, 101368, 126710, 202736, 253420, 316775, 392801, 506840, 633550, 785602, 1013680, 1267100, 1571204, 1964005, 2534200, 3142408, 3928010, 5068400, 6284816, 7856020, 9820025, 15712040, 19640050, 31424080, 39280100, 78560200, 157120400]

約数ペア:

[(1, 157120400), (2, 78560200), (4, 39280100), (5, 31424080), (8, 19640050), (10, 15712040), (16, 9820025), (20, 7856020), (25, 6284816), (31, 5068400), (40, 3928010), (50, 3142408), (62, 2534200), (80, 1964005), (100, 1571204), (124, 1267100), (155, 1013680), (200, 785602), (248, 633550), (310, 506840), (400, 392801), (496, 316775), (620, 253420), (775, 202736), (1240, 126710), (1550, 101368), (2480, 63355), (3100, 50684), (6200, 25342), (12400, 12671)]