4280980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 72

約数和(自身を含む): 10389960

約数和(自身を除く): 6108980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 61, 110, 116, 121, 122, 145, 220, 242, 244, 290, 305, 319, 484, 580, 605, 610, 638, 671, 1210, 1220, 1276, 1342, 1595, 1769, 2420, 2684, 3190, 3355, 3509, 3538, 6380, 6710, 7018, 7076, 7381, 8845, 13420, 14036, 14762, 17545, 17690, 19459, 29524, 35090, 35380, 36905, 38918, 70180, 73810, 77836, 97295, 147620, 194590, 214049, 389180, 428098, 856196, 1070245, 2140490, 4280980]

約数ペア:

[(1, 4280980), (2, 2140490), (4, 1070245), (5, 856196), (10, 428098), (11, 389180), (20, 214049), (22, 194590), (29, 147620), (44, 97295), (55, 77836), (58, 73810), (61, 70180), (110, 38918), (116, 36905), (121, 35380), (122, 35090), (145, 29524), (220, 19459), (242, 17690), (244, 17545), (290, 14762), (305, 14036), (319, 13420), (484, 8845), (580, 7381), (605, 7076), (610, 7018), (638, 6710), (671, 6380), (1210, 3538), (1220, 3509), (1276, 3355), (1342, 3190), (1595, 2684), (1769, 2420)]