131120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1$

素因数の和:173

約数の個数: 40

約数和(自身を含む): 334800

約数和(自身を除く): 203680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 149, 176, 220, 298, 440, 596, 745, 880, 1192, 1490, 1639, 2384, 2980, 3278, 5960, 6556, 8195, 11920, 13112, 16390, 26224, 32780, 65560, 131120]

約数ペア:

[(1, 131120), (2, 65560), (4, 32780), (5, 26224), (8, 16390), (10, 13112), (11, 11920), (16, 8195), (20, 6556), (22, 5960), (40, 3278), (44, 2980), (55, 2384), (80, 1639), (88, 1490), (110, 1192), (149, 880), (176, 745), (220, 596), (298, 440)]