20577525

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 36188160

約数和(自身を除く): 15610635

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 151, 237, 345, 395, 453, 575, 755, 1185, 1725, 1817, 1975, 2265, 3473, 3775, 5451, 5925, 9085, 10419, 11325, 11929, 17365, 27255, 35787, 45425, 52095, 59645, 86825, 136275, 178935, 260475, 274367, 298225, 823101, 894675, 1371835, 4115505, 6859175, 20577525]

約数ペア:

[(1, 20577525), (3, 6859175), (5, 4115505), (15, 1371835), (23, 894675), (25, 823101), (69, 298225), (75, 274367), (79, 260475), (115, 178935), (151, 136275), (237, 86825), (345, 59645), (395, 52095), (453, 45425), (575, 35787), (755, 27255), (1185, 17365), (1725, 11929), (1817, 11325), (1975, 10419), (2265, 9085), (3473, 5925), (3775, 5451)]