28501360

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4003}}^1$

素因数の和:4105

約数の個数: 40

約数和(自身を含む): 67026960

約数和(自身を除く): 38525600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 4003, 7120, 8006, 16012, 20015, 32024, 40030, 64048, 80060, 160120, 320240, 356267, 712534, 1425068, 1781335, 2850136, 3562670, 5700272, 7125340, 14250680, 28501360]

約数ペア:

[(1, 28501360), (2, 14250680), (4, 7125340), (5, 5700272), (8, 3562670), (10, 2850136), (16, 1781335), (20, 1425068), (40, 712534), (80, 356267), (89, 320240), (178, 160120), (356, 80060), (445, 64048), (712, 40030), (890, 32024), (1424, 20015), (1780, 16012), (3560, 8006), (4003, 7120)]