1270940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 2993760

約数和(自身を除く): 1722820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 109, 110, 212, 218, 220, 265, 436, 530, 545, 583, 1060, 1090, 1166, 1199, 2180, 2332, 2398, 2915, 4796, 5777, 5830, 5995, 11554, 11660, 11990, 23108, 23980, 28885, 57770, 63547, 115540, 127094, 254188, 317735, 635470, 1270940]

約数ペア:

[(1, 1270940), (2, 635470), (4, 317735), (5, 254188), (10, 127094), (11, 115540), (20, 63547), (22, 57770), (44, 28885), (53, 23980), (55, 23108), (106, 11990), (109, 11660), (110, 11554), (212, 5995), (218, 5830), (220, 5777), (265, 4796), (436, 2915), (530, 2398), (545, 2332), (583, 2180), (1060, 1199), (1090, 1166)]