25283120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:222

約数の個数: 80

約数和(自身を含む): 61469280

約数和(自身を除く): 36186160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 67, 80, 89, 106, 134, 178, 212, 265, 268, 335, 356, 424, 445, 530, 536, 670, 712, 848, 890, 1060, 1072, 1340, 1424, 1780, 2120, 2680, 3551, 3560, 4240, 4717, 5360, 5963, 7102, 7120, 9434, 11926, 14204, 17755, 18868, 23585, 23852, 28408, 29815, 35510, 37736, 47170, 47704, 56816, 59630, 71020, 75472, 94340, 95408, 119260, 142040, 188680, 238520, 284080, 316039, 377360, 477040, 632078, 1264156, 1580195, 2528312, 3160390, 5056624, 6320780, 12641560, 25283120]

約数ペア:

[(1, 25283120), (2, 12641560), (4, 6320780), (5, 5056624), (8, 3160390), (10, 2528312), (16, 1580195), (20, 1264156), (40, 632078), (53, 477040), (67, 377360), (80, 316039), (89, 284080), (106, 238520), (134, 188680), (178, 142040), (212, 119260), (265, 95408), (268, 94340), (335, 75472), (356, 71020), (424, 59630), (445, 56816), (530, 47704), (536, 47170), (670, 37736), (712, 35510), (848, 29815), (890, 28408), (1060, 23852), (1072, 23585), (1340, 18868), (1424, 17755), (1780, 14204), (2120, 11926), (2680, 9434), (3551, 7120), (3560, 7102), (4240, 5963), (4717, 5360)]