78561855

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:516

約数の個数: 48

約数和(自身を含む): 140534784

約数和(自身を除く): 61972929

約数列:

[1, 3, 5, 9, 15, 45, 67, 71, 201, 213, 335, 355, 367, 603, 639, 1005, 1065, 1101, 1835, 3015, 3195, 3303, 4757, 5505, 14271, 16515, 23785, 24589, 26057, 42813, 71355, 73767, 78171, 122945, 130285, 214065, 221301, 234513, 368835, 390855, 1106505, 1172565, 1745819, 5237457, 8729095, 15712371, 26187285, 78561855]

約数ペア:

[(1, 78561855), (3, 26187285), (5, 15712371), (9, 8729095), (15, 5237457), (45, 1745819), (67, 1172565), (71, 1106505), (201, 390855), (213, 368835), (335, 234513), (355, 221301), (367, 214065), (603, 130285), (639, 122945), (1005, 78171), (1065, 73767), (1101, 71355), (1835, 42813), (3015, 26057), (3195, 24589), (3303, 23785), (4757, 16515), (5505, 14271)]