320160940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{23857}}^1$

素因数の和:23938

約数の個数: 48

約数和(自身を含む): 745514784

約数和(自身を除く): 425353844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 23857, 47714, 95428, 119285, 238570, 262427, 477140, 524854, 1049708, 1312135, 1455277, 2624270, 2910554, 5248540, 5821108, 7276385, 14552770, 16008047, 29105540, 32016094, 64032188, 80040235, 160080470, 320160940]

約数ペア:

[(1, 320160940), (2, 160080470), (4, 80040235), (5, 64032188), (10, 32016094), (11, 29105540), (20, 16008047), (22, 14552770), (44, 7276385), (55, 5821108), (61, 5248540), (110, 2910554), (122, 2624270), (220, 1455277), (244, 1312135), (305, 1049708), (610, 524854), (671, 477140), (1220, 262427), (1342, 238570), (2684, 119285), (3355, 95428), (6710, 47714), (13420, 23857)]