9880475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 14760960

約数和(自身を除く): 4880485

約数列:

[1, 5, 11, 19, 25, 31, 55, 61, 95, 155, 209, 275, 305, 341, 475, 589, 671, 775, 1045, 1159, 1525, 1705, 1891, 2945, 3355, 5225, 5795, 6479, 8525, 9455, 12749, 14725, 16775, 20801, 28975, 32395, 35929, 47275, 63745, 104005, 161975, 179645, 318725, 395219, 520025, 898225, 1976095, 9880475]

約数ペア:

[(1, 9880475), (5, 1976095), (11, 898225), (19, 520025), (25, 395219), (31, 318725), (55, 179645), (61, 161975), (95, 104005), (155, 63745), (209, 47275), (275, 35929), (305, 32395), (341, 28975), (475, 20801), (589, 16775), (671, 14725), (775, 12749), (1045, 9455), (1159, 8525), (1525, 6479), (1705, 5795), (1891, 5225), (2945, 3355)]