78325840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{31583}}^1$

素因数の和:31627

約数の個数: 40

約数和(自身を含む): 187987968

約数和(自身を除く): 109662128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 31583, 63166, 126332, 157915, 252664, 315830, 505328, 631660, 979073, 1263320, 1958146, 2526640, 3916292, 4895365, 7832584, 9790730, 15665168, 19581460, 39162920, 78325840]

約数ペア:

[(1, 78325840), (2, 39162920), (4, 19581460), (5, 15665168), (8, 9790730), (10, 7832584), (16, 4895365), (20, 3916292), (31, 2526640), (40, 1958146), (62, 1263320), (80, 979073), (124, 631660), (155, 505328), (248, 315830), (310, 252664), (496, 157915), (620, 126332), (1240, 63166), (2480, 31583)]