20199492725

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{87719}}^1$

素因数の和:87941

約数の個数: 24

約数和(自身を含む): 25626871680

約数和(自身を除く): 5427378955

約数列:

[1, 5, 25, 61, 151, 305, 755, 1525, 3775, 9211, 46055, 87719, 230275, 438595, 2192975, 5350859, 13245569, 26754295, 66227845, 133771475, 331139225, 807979709, 4039898545, 20199492725]

約数ペア:

[(1, 20199492725), (5, 4039898545), (25, 807979709), (61, 331139225), (151, 133771475), (305, 66227845), (755, 26754295), (1525, 13245569), (3775, 5350859), (9211, 2192975), (46055, 438595), (87719, 230275)]