20623875

素因数分解:

$3^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1279}}^1$

素因数の和:1340

約数の個数: 32

約数和(自身を含む): 35143680

約数和(自身を除く): 14519805

約数列:

[1, 3, 5, 15, 25, 43, 75, 125, 129, 215, 375, 645, 1075, 1279, 3225, 3837, 5375, 6395, 16125, 19185, 31975, 54997, 95925, 159875, 164991, 274985, 479625, 824955, 1374925, 4124775, 6874625, 20623875]

約数ペア:

[(1, 20623875), (3, 6874625), (5, 4124775), (15, 1374925), (25, 824955), (43, 479625), (75, 274985), (125, 164991), (129, 159875), (215, 95925), (375, 54997), (645, 31975), (1075, 19185), (1279, 16125), (3225, 6395), (3837, 5375)]