28765750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 59439744

約数和(自身を除く): 30673994

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 53, 65, 106, 125, 130, 167, 250, 265, 325, 334, 530, 650, 689, 835, 1325, 1378, 1625, 1670, 2171, 2650, 3250, 3445, 4175, 4342, 6625, 6890, 8350, 8851, 10855, 13250, 17225, 17702, 20875, 21710, 34450, 41750, 44255, 54275, 86125, 88510, 108550, 115063, 172250, 221275, 230126, 271375, 442550, 542750, 575315, 1106375, 1150630, 2212750, 2876575, 5753150, 14382875, 28765750]

約数ペア:

[(1, 28765750), (2, 14382875), (5, 5753150), (10, 2876575), (13, 2212750), (25, 1150630), (26, 1106375), (50, 575315), (53, 542750), (65, 442550), (106, 271375), (125, 230126), (130, 221275), (167, 172250), (250, 115063), (265, 108550), (325, 88510), (334, 86125), (530, 54275), (650, 44255), (689, 41750), (835, 34450), (1325, 21710), (1378, 20875), (1625, 17702), (1670, 17225), (2171, 13250), (2650, 10855), (3250, 8851), (3445, 8350), (4175, 6890), (4342, 6625)]