72173720

素因数分解:

$2^3\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1627}}^1$

素因数の和:2747

約数の個数: 32

約数和(自身を含む): 162637200

約数和(自身を除く): 90463480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1109, 1627, 2218, 3254, 4436, 5545, 6508, 8135, 8872, 11090, 13016, 16270, 22180, 32540, 44360, 65080, 1804343, 3608686, 7217372, 9021715, 14434744, 18043430, 36086860, 72173720]

約数ペア:

[(1, 72173720), (2, 36086860), (4, 18043430), (5, 14434744), (8, 9021715), (10, 7217372), (20, 3608686), (40, 1804343), (1109, 65080), (1627, 44360), (2218, 32540), (3254, 22180), (4436, 16270), (5545, 13016), (6508, 11090), (8135, 8872)]