81957080

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 191017440

約数和(自身を除く): 109060360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 67, 106, 134, 212, 265, 268, 335, 424, 530, 536, 577, 670, 1060, 1154, 1340, 2120, 2308, 2680, 2885, 3551, 4616, 5770, 7102, 11540, 14204, 17755, 23080, 28408, 30581, 35510, 38659, 61162, 71020, 77318, 122324, 142040, 152905, 154636, 193295, 244648, 305810, 309272, 386590, 611620, 773180, 1223240, 1546360, 2048927, 4097854, 8195708, 10244635, 16391416, 20489270, 40978540, 81957080]

約数ペア:

[(1, 81957080), (2, 40978540), (4, 20489270), (5, 16391416), (8, 10244635), (10, 8195708), (20, 4097854), (40, 2048927), (53, 1546360), (67, 1223240), (106, 773180), (134, 611620), (212, 386590), (265, 309272), (268, 305810), (335, 244648), (424, 193295), (530, 154636), (536, 152905), (577, 142040), (670, 122324), (1060, 77318), (1154, 71020), (1340, 61162), (2120, 38659), (2308, 35510), (2680, 30581), (2885, 28408), (3551, 23080), (4616, 17755), (5770, 14204), (7102, 11540)]