129612890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{991}}^1$

素因数の和:1079

約数の個数: 64

約数和(自身を含む): 269982720

約数和(自身を除く): 140369830

約数列:

[1, 2, 5, 10, 11, 22, 29, 41, 55, 58, 82, 110, 145, 205, 290, 319, 410, 451, 638, 902, 991, 1189, 1595, 1982, 2255, 2378, 3190, 4510, 4955, 5945, 9910, 10901, 11890, 13079, 21802, 26158, 28739, 40631, 54505, 57478, 65395, 81262, 109010, 130790, 143695, 203155, 287390, 316129, 406310, 446941, 632258, 893882, 1178299, 1580645, 2234705, 2356598, 3161290, 4469410, 5891495, 11782990, 12961289, 25922578, 64806445, 129612890]

約数ペア:

[(1, 129612890), (2, 64806445), (5, 25922578), (10, 12961289), (11, 11782990), (22, 5891495), (29, 4469410), (41, 3161290), (55, 2356598), (58, 2234705), (82, 1580645), (110, 1178299), (145, 893882), (205, 632258), (290, 446941), (319, 406310), (410, 316129), (451, 287390), (638, 203155), (902, 143695), (991, 130790), (1189, 109010), (1595, 81262), (1982, 65395), (2255, 57478), (2378, 54505), (3190, 40631), (4510, 28739), (4955, 26158), (5945, 21802), (9910, 13079), (10901, 11890)]