20367750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2089}}^1$

素因数の和:2122

約数の個数: 64

約数和(自身を含む): 54774720

約数和(自身を除く): 34406970

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2089, 3250, 4178, 4875, 6267, 9750, 10445, 12534, 20890, 27157, 31335, 52225, 54314, 62670, 81471, 104450, 135785, 156675, 162942, 261125, 271570, 313350, 407355, 522250, 678925, 783375, 814710, 1357850, 1566750, 2036775, 3394625, 4073550, 6789250, 10183875, 20367750]

約数ペア:

[(1, 20367750), (2, 10183875), (3, 6789250), (5, 4073550), (6, 3394625), (10, 2036775), (13, 1566750), (15, 1357850), (25, 814710), (26, 783375), (30, 678925), (39, 522250), (50, 407355), (65, 313350), (75, 271570), (78, 261125), (125, 162942), (130, 156675), (150, 135785), (195, 104450), (250, 81471), (325, 62670), (375, 54314), (390, 52225), (650, 31335), (750, 27157), (975, 20890), (1625, 12534), (1950, 10445), (2089, 9750), (3250, 6267), (4178, 4875)]