9920475

素因数分解:

$3^5\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 19498752

約数和(自身を除く): 9578277

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 71, 75, 81, 115, 135, 207, 213, 225, 243, 345, 355, 405, 575, 621, 639, 675, 1035, 1065, 1215, 1633, 1725, 1775, 1863, 1917, 2025, 3105, 3195, 4899, 5175, 5325, 5589, 5751, 6075, 8165, 9315, 9585, 14697, 15525, 15975, 17253, 24495, 27945, 28755, 40825, 44091, 46575, 47925, 73485, 86265, 122475, 132273, 139725, 143775, 220455, 367425, 396819, 431325, 661365, 1102275, 1984095, 3306825, 9920475]

約数ペア:

[(1, 9920475), (3, 3306825), (5, 1984095), (9, 1102275), (15, 661365), (23, 431325), (25, 396819), (27, 367425), (45, 220455), (69, 143775), (71, 139725), (75, 132273), (81, 122475), (115, 86265), (135, 73485), (207, 47925), (213, 46575), (225, 44091), (243, 40825), (345, 28755), (355, 27945), (405, 24495), (575, 17253), (621, 15975), (639, 15525), (675, 14697), (1035, 9585), (1065, 9315), (1215, 8165), (1633, 6075), (1725, 5751), (1775, 5589), (1863, 5325), (1917, 5175), (2025, 4899), (3105, 3195)]