68405840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{27583}}^1$

素因数の和:27627

約数の個数: 40

約数和(自身を含む): 164179968

約数和(自身を除く): 95774128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 27583, 55166, 110332, 137915, 220664, 275830, 441328, 551660, 855073, 1103320, 1710146, 2206640, 3420292, 4275365, 6840584, 8550730, 13681168, 17101460, 34202920, 68405840]

約数ペア:

[(1, 68405840), (2, 34202920), (4, 17101460), (5, 13681168), (8, 8550730), (10, 6840584), (16, 4275365), (20, 3420292), (31, 2206640), (40, 1710146), (62, 1103320), (80, 855073), (124, 551660), (155, 441328), (248, 275830), (310, 220664), (496, 137915), (620, 110332), (1240, 55166), (2480, 27583)]