19963875

素因数分解:

$3^1\times 5^3\times {\mathrm{139}}^1\times {\mathrm{383}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 33546240

約数和(自身を除く): 13582365

約数列:

[1, 3, 5, 15, 25, 75, 125, 139, 375, 383, 417, 695, 1149, 1915, 2085, 3475, 5745, 9575, 10425, 17375, 28725, 47875, 52125, 53237, 143625, 159711, 266185, 798555, 1330925, 3992775, 6654625, 19963875]

約数ペア:

[(1, 19963875), (3, 6654625), (5, 3992775), (15, 1330925), (25, 798555), (75, 266185), (125, 159711), (139, 143625), (375, 53237), (383, 52125), (417, 47875), (695, 28725), (1149, 17375), (1915, 10425), (2085, 9575), (3475, 5745)]