280226980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2417}}^1$

素因数の和:2485

約数の個数: 96

約数和(自身を含む): 701955072

約数和(自身を除く): 421728092

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 31, 34, 44, 55, 62, 68, 85, 110, 124, 155, 170, 187, 220, 310, 340, 341, 374, 527, 620, 682, 748, 935, 1054, 1364, 1705, 1870, 2108, 2417, 2635, 3410, 3740, 4834, 5270, 5797, 6820, 9668, 10540, 11594, 12085, 23188, 24170, 26587, 28985, 41089, 48340, 53174, 57970, 74927, 82178, 106348, 115940, 132935, 149854, 164356, 205445, 265870, 299708, 374635, 410890, 451979, 531740, 749270, 821780, 824197, 903958, 1273759, 1498540, 1648394, 1807916, 2259895, 2547518, 3296788, 4120985, 4519790, 5095036, 6368795, 8241970, 9039580, 12737590, 14011349, 16483940, 25475180, 28022698, 56045396, 70056745, 140113490, 280226980]

約数ペア:

[(1, 280226980), (2, 140113490), (4, 70056745), (5, 56045396), (10, 28022698), (11, 25475180), (17, 16483940), (20, 14011349), (22, 12737590), (31, 9039580), (34, 8241970), (44, 6368795), (55, 5095036), (62, 4519790), (68, 4120985), (85, 3296788), (110, 2547518), (124, 2259895), (155, 1807916), (170, 1648394), (187, 1498540), (220, 1273759), (310, 903958), (340, 824197), (341, 821780), (374, 749270), (527, 531740), (620, 451979), (682, 410890), (748, 374635), (935, 299708), (1054, 265870), (1364, 205445), (1705, 164356), (1870, 149854), (2108, 132935), (2417, 115940), (2635, 106348), (3410, 82178), (3740, 74927), (4834, 57970), (5270, 53174), (5797, 48340), (6820, 41089), (9668, 28985), (10540, 26587), (11594, 24170), (12085, 23188)]