20698390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2903}}^1$

素因数の和:2964

約数の個数: 32

約数和(自身を含む): 40144896

約数和(自身を除く): 19446506

約数列:

[1, 2, 5, 10, 23, 31, 46, 62, 115, 155, 230, 310, 713, 1426, 2903, 3565, 5806, 7130, 14515, 29030, 66769, 89993, 133538, 179986, 333845, 449965, 667690, 899930, 2069839, 4139678, 10349195, 20698390]

約数ペア:

[(1, 20698390), (2, 10349195), (5, 4139678), (10, 2069839), (23, 899930), (31, 667690), (46, 449965), (62, 333845), (115, 179986), (155, 133538), (230, 89993), (310, 66769), (713, 29030), (1426, 14515), (2903, 7130), (3565, 5806)]