28985540

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 62694912

約数和(自身を除く): 33709372

約数列:

[1, 2, 4, 5, 10, 20, 67, 97, 134, 194, 223, 268, 335, 388, 446, 485, 670, 892, 970, 1115, 1340, 1940, 2230, 4460, 6499, 12998, 14941, 21631, 25996, 29882, 32495, 43262, 59764, 64990, 74705, 86524, 108155, 129980, 149410, 216310, 298820, 432620, 1449277, 2898554, 5797108, 7246385, 14492770, 28985540]

約数ペア:

[(1, 28985540), (2, 14492770), (4, 7246385), (5, 5797108), (10, 2898554), (20, 1449277), (67, 432620), (97, 298820), (134, 216310), (194, 149410), (223, 129980), (268, 108155), (335, 86524), (388, 74705), (446, 64990), (485, 59764), (670, 43262), (892, 32495), (970, 29882), (1115, 25996), (1340, 21631), (1940, 14941), (2230, 12998), (4460, 6499)]