7981220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30697}}^1$

素因数の和:30719

約数の個数: 24

約数和(自身を含む): 18050424

約数和(自身を除く): 10069204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30697, 61394, 122788, 153485, 306970, 399061, 613940, 798122, 1596244, 1995305, 3990610, 7981220]

約数ペア:

[(1, 7981220), (2, 3990610), (4, 1995305), (5, 1596244), (10, 798122), (13, 613940), (20, 399061), (26, 306970), (52, 153485), (65, 122788), (130, 61394), (260, 30697)]