25709240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 64

約数和(自身を含む): 60147360

約数和(自身を除く): 34438120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 67, 106, 134, 181, 212, 265, 268, 335, 362, 424, 530, 536, 670, 724, 905, 1060, 1340, 1448, 1810, 2120, 2680, 3551, 3620, 7102, 7240, 9593, 12127, 14204, 17755, 19186, 24254, 28408, 35510, 38372, 47965, 48508, 60635, 71020, 76744, 95930, 97016, 121270, 142040, 191860, 242540, 383720, 485080, 642731, 1285462, 2570924, 3213655, 5141848, 6427310, 12854620, 25709240]

約数ペア:

[(1, 25709240), (2, 12854620), (4, 6427310), (5, 5141848), (8, 3213655), (10, 2570924), (20, 1285462), (40, 642731), (53, 485080), (67, 383720), (106, 242540), (134, 191860), (181, 142040), (212, 121270), (265, 97016), (268, 95930), (335, 76744), (362, 71020), (424, 60635), (530, 48508), (536, 47965), (670, 38372), (724, 35510), (905, 28408), (1060, 24254), (1340, 19186), (1448, 17755), (1810, 14204), (2120, 12127), (2680, 9593), (3551, 7240), (3620, 7102)]