64412925

素因数分解:

$3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{19973}}^1$

素因数の和:20029

約数の個数: 24

約数和(自身を含む): 108978144

約数和(自身を除く): 44565219

約数列:

[1, 3, 5, 15, 25, 43, 75, 129, 215, 645, 1075, 3225, 19973, 59919, 99865, 299595, 499325, 858839, 1497975, 2576517, 4294195, 12882585, 21470975, 64412925]

約数ペア:

[(1, 64412925), (3, 21470975), (5, 12882585), (15, 4294195), (25, 2576517), (43, 1497975), (75, 858839), (129, 499325), (215, 299595), (645, 99865), (1075, 59919), (3225, 19973)]