7245940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2$

素因数の和:113

約数の個数: 72

約数和(自身を含む): 17516520

約数和(自身を除く): 10270580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 31, 52, 58, 62, 65, 116, 124, 130, 145, 155, 260, 290, 310, 377, 403, 580, 620, 754, 806, 899, 961, 1508, 1612, 1798, 1885, 1922, 2015, 3596, 3770, 3844, 4030, 4495, 4805, 7540, 8060, 8990, 9610, 11687, 12493, 17980, 19220, 23374, 24986, 27869, 46748, 49972, 55738, 58435, 62465, 111476, 116870, 124930, 139345, 233740, 249860, 278690, 362297, 557380, 724594, 1449188, 1811485, 3622970, 7245940]

約数ペア:

[(1, 7245940), (2, 3622970), (4, 1811485), (5, 1449188), (10, 724594), (13, 557380), (20, 362297), (26, 278690), (29, 249860), (31, 233740), (52, 139345), (58, 124930), (62, 116870), (65, 111476), (116, 62465), (124, 58435), (130, 55738), (145, 49972), (155, 46748), (260, 27869), (290, 24986), (310, 23374), (377, 19220), (403, 17980), (580, 12493), (620, 11687), (754, 9610), (806, 8990), (899, 8060), (961, 7540), (1508, 4805), (1612, 4495), (1798, 4030), (1885, 3844), (1922, 3770), (2015, 3596)]