90969940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{761}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 197144640

約数和(自身を除く): 106174700

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 215, 278, 430, 556, 695, 761, 860, 1390, 1522, 2780, 3044, 3805, 5977, 7610, 11954, 15220, 23908, 29885, 32723, 59770, 65446, 105779, 119540, 130892, 163615, 211558, 327230, 423116, 528895, 654460, 1057790, 2115580, 4548497, 9096994, 18193988, 22742485, 45484970, 90969940]

約数ペア:

[(1, 90969940), (2, 45484970), (4, 22742485), (5, 18193988), (10, 9096994), (20, 4548497), (43, 2115580), (86, 1057790), (139, 654460), (172, 528895), (215, 423116), (278, 327230), (430, 211558), (556, 163615), (695, 130892), (761, 119540), (860, 105779), (1390, 65446), (1522, 59770), (2780, 32723), (3044, 29885), (3805, 23908), (5977, 15220), (7610, 11954)]