81779640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{681497}}^1$

素因数の和:681511

約数の個数: 32

約数和(自身を含む): 245339280

約数和(自身を除く): 163559640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681497, 1362994, 2044491, 2725988, 3407485, 4088982, 5451976, 6814970, 8177964, 10222455, 13629940, 16355928, 20444910, 27259880, 40889820, 81779640]

約数ペア:

[(1, 81779640), (2, 40889820), (3, 27259880), (4, 20444910), (5, 16355928), (6, 13629940), (8, 10222455), (10, 8177964), (12, 6814970), (15, 5451976), (20, 4088982), (24, 3407485), (30, 2725988), (40, 2044491), (60, 1362994), (120, 681497)]