20362725

素因数分解:

$3^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 17551515

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 97, 135, 225, 291, 311, 485, 675, 873, 933, 1455, 1555, 2425, 2619, 2799, 4365, 4665, 7275, 7775, 8397, 13095, 13995, 21825, 23325, 30167, 41985, 65475, 69975, 90501, 150835, 209925, 271503, 452505, 754175, 814509, 1357515, 2262525, 4072545, 6787575, 20362725]

約数ペア:

[(1, 20362725), (3, 6787575), (5, 4072545), (9, 2262525), (15, 1357515), (25, 814509), (27, 754175), (45, 452505), (75, 271503), (97, 209925), (135, 150835), (225, 90501), (291, 69975), (311, 65475), (485, 41985), (675, 30167), (873, 23325), (933, 21825), (1455, 13995), (1555, 13095), (2425, 8397), (2619, 7775), (2799, 7275), (4365, 4665)]