2100025180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{78889}}^1$

素因数の和:78931

約数の個数: 48

約数和(自身を含む): 4850788320

約数和(自身を除く): 2750763140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 1331, 2420, 2662, 5324, 6655, 13310, 26620, 78889, 157778, 315556, 394445, 788890, 867779, 1577780, 1735558, 3471116, 4338895, 8677790, 9545569, 17355580, 19091138, 38182276, 47727845, 95455690, 105001259, 190911380, 210002518, 420005036, 525006295, 1050012590, 2100025180]

約数ペア:

[(1, 2100025180), (2, 1050012590), (4, 525006295), (5, 420005036), (10, 210002518), (11, 190911380), (20, 105001259), (22, 95455690), (44, 47727845), (55, 38182276), (110, 19091138), (121, 17355580), (220, 9545569), (242, 8677790), (484, 4338895), (605, 3471116), (1210, 1735558), (1331, 1577780), (2420, 867779), (2662, 788890), (5324, 394445), (6655, 315556), (13310, 157778), (26620, 78889)]