12641560

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 29743200

約数和(自身を除く): 17101640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 67, 89, 106, 134, 178, 212, 265, 268, 335, 356, 424, 445, 530, 536, 670, 712, 890, 1060, 1340, 1780, 2120, 2680, 3551, 3560, 4717, 5963, 7102, 9434, 11926, 14204, 17755, 18868, 23585, 23852, 28408, 29815, 35510, 37736, 47170, 47704, 59630, 71020, 94340, 119260, 142040, 188680, 238520, 316039, 632078, 1264156, 1580195, 2528312, 3160390, 6320780, 12641560]

約数ペア:

[(1, 12641560), (2, 6320780), (4, 3160390), (5, 2528312), (8, 1580195), (10, 1264156), (20, 632078), (40, 316039), (53, 238520), (67, 188680), (89, 142040), (106, 119260), (134, 94340), (178, 71020), (212, 59630), (265, 47704), (268, 47170), (335, 37736), (356, 35510), (424, 29815), (445, 28408), (530, 23852), (536, 23585), (670, 18868), (712, 17755), (890, 14204), (1060, 11926), (1340, 9434), (1780, 7102), (2120, 5963), (2680, 4717), (3551, 3560)]