28148250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2887}}^1$

素因数の和:2920

約数の個数: 64

約数和(自身を含む): 75688704

約数和(自身を除く): 47540454

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, 2887, 3250, 4875, 5774, 8661, 9750, 14435, 17322, 28870, 37531, 43305, 72175, 75062, 86610, 112593, 144350, 187655, 216525, 225186, 360875, 375310, 433050, 562965, 721750, 938275, 1082625, 1125930, 1876550, 2165250, 2814825, 4691375, 5629650, 9382750, 14074125, 28148250]

約数ペア:

[(1, 28148250), (2, 14074125), (3, 9382750), (5, 5629650), (6, 4691375), (10, 2814825), (13, 2165250), (15, 1876550), (25, 1125930), (26, 1082625), (30, 938275), (39, 721750), (50, 562965), (65, 433050), (75, 375310), (78, 360875), (125, 225186), (130, 216525), (150, 187655), (195, 144350), (250, 112593), (325, 86610), (375, 75062), (390, 72175), (650, 43305), (750, 37531), (975, 28870), (1625, 17322), (1950, 14435), (2887, 9750), (3250, 8661), (4875, 5774)]