81173720

素因数分解:

$2^3\times 5^1\times {\mathrm{1171}}^1\times {\mathrm{1733}}^1$

素因数の和:2915

約数の個数: 32

約数和(自身を含む): 182902320

約数和(自身を除く): 101728600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1171, 1733, 2342, 3466, 4684, 5855, 6932, 8665, 9368, 11710, 13864, 17330, 23420, 34660, 46840, 69320, 2029343, 4058686, 8117372, 10146715, 16234744, 20293430, 40586860, 81173720]

約数ペア:

[(1, 81173720), (2, 40586860), (4, 20293430), (5, 16234744), (8, 10146715), (10, 8117372), (20, 4058686), (40, 2029343), (1171, 69320), (1733, 46840), (2342, 34660), (3466, 23420), (4684, 17330), (5855, 13864), (6932, 11710), (8665, 9368)]