2980780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{797}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 7239456

約数和(自身を除く): 4258676

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 797, 935, 1594, 1870, 3188, 3740, 3985, 7970, 8767, 13549, 15940, 17534, 27098, 35068, 43835, 54196, 67745, 87670, 135490, 149039, 175340, 270980, 298078, 596156, 745195, 1490390, 2980780]

約数ペア:

[(1, 2980780), (2, 1490390), (4, 745195), (5, 596156), (10, 298078), (11, 270980), (17, 175340), (20, 149039), (22, 135490), (34, 87670), (44, 67745), (55, 54196), (68, 43835), (85, 35068), (110, 27098), (170, 17534), (187, 15940), (220, 13549), (340, 8767), (374, 7970), (748, 3985), (797, 3740), (935, 3188), (1594, 1870)]