31975875

素因数分解:

$3^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 59071584

約数和(自身を除く): 27095709

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 125, 129, 215, 225, 375, 387, 645, 661, 1075, 1125, 1935, 1983, 3225, 3305, 5375, 5949, 9675, 9915, 16125, 16525, 28423, 29745, 48375, 49575, 82625, 85269, 142115, 148725, 247875, 255807, 426345, 710575, 743625, 1279035, 2131725, 3552875, 6395175, 10658625, 31975875]

約数ペア:

[(1, 31975875), (3, 10658625), (5, 6395175), (9, 3552875), (15, 2131725), (25, 1279035), (43, 743625), (45, 710575), (75, 426345), (125, 255807), (129, 247875), (215, 148725), (225, 142115), (375, 85269), (387, 82625), (645, 49575), (661, 48375), (1075, 29745), (1125, 28423), (1935, 16525), (1983, 16125), (3225, 9915), (3305, 9675), (5375, 5949)]