1297780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 3157056

約数和(自身を除く): 1859276

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 347, 374, 694, 748, 935, 1388, 1735, 1870, 3470, 3740, 3817, 5899, 6940, 7634, 11798, 15268, 19085, 23596, 29495, 38170, 58990, 64889, 76340, 117980, 129778, 259556, 324445, 648890, 1297780]

約数ペア:

[(1, 1297780), (2, 648890), (4, 324445), (5, 259556), (10, 129778), (11, 117980), (17, 76340), (20, 64889), (22, 58990), (34, 38170), (44, 29495), (55, 23596), (68, 19085), (85, 15268), (110, 11798), (170, 7634), (187, 6940), (220, 5899), (340, 3817), (347, 3740), (374, 3470), (694, 1870), (748, 1735), (935, 1388)]