11981925

素因数分解:

$3^4\times 5^2\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:180

約数の個数: 60

約数和(自身を含む): 22791076

約数和(自身を除く): 10809151

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 61, 75, 81, 97, 135, 183, 225, 291, 305, 405, 485, 549, 675, 873, 915, 1455, 1525, 1647, 2025, 2425, 2619, 2745, 4365, 4575, 4941, 5917, 7275, 7857, 8235, 13095, 13725, 17751, 21825, 24705, 29585, 39285, 41175, 53253, 65475, 88755, 123525, 147925, 159759, 196425, 266265, 443775, 479277, 798795, 1331325, 2396385, 3993975, 11981925]

約数ペア:

[(1, 11981925), (3, 3993975), (5, 2396385), (9, 1331325), (15, 798795), (25, 479277), (27, 443775), (45, 266265), (61, 196425), (75, 159759), (81, 147925), (97, 123525), (135, 88755), (183, 65475), (225, 53253), (291, 41175), (305, 39285), (405, 29585), (485, 24705), (549, 21825), (675, 17751), (873, 13725), (915, 13095), (1455, 8235), (1525, 7857), (1647, 7275), (2025, 5917), (2425, 4941), (2619, 4575), (2745, 4365)]