28980400

素因数分解:

$2^4\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1367}}^1$

素因数の和:1438

約数の個数: 60

約数和(自身を含む): 70990992

約数和(自身を除く): 42010592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 53, 80, 100, 106, 200, 212, 265, 400, 424, 530, 848, 1060, 1325, 1367, 2120, 2650, 2734, 4240, 5300, 5468, 6835, 10600, 10936, 13670, 21200, 21872, 27340, 34175, 54680, 68350, 72451, 109360, 136700, 144902, 273400, 289804, 362255, 546800, 579608, 724510, 1159216, 1449020, 1811275, 2898040, 3622550, 5796080, 7245100, 14490200, 28980400]

約数ペア:

[(1, 28980400), (2, 14490200), (4, 7245100), (5, 5796080), (8, 3622550), (10, 2898040), (16, 1811275), (20, 1449020), (25, 1159216), (40, 724510), (50, 579608), (53, 546800), (80, 362255), (100, 289804), (106, 273400), (200, 144902), (212, 136700), (265, 109360), (400, 72451), (424, 68350), (530, 54680), (848, 34175), (1060, 27340), (1325, 21872), (1367, 21200), (2120, 13670), (2650, 10936), (2734, 10600), (4240, 6835), (5300, 5468)]