390910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:148

約数の個数: 32

約数和(自身を含む): 790272

約数和(自身を除く): 399362

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 97, 130, 155, 194, 310, 403, 485, 806, 970, 1261, 2015, 2522, 3007, 4030, 6014, 6305, 12610, 15035, 30070, 39091, 78182, 195455, 390910]

約数ペア:

[(1, 390910), (2, 195455), (5, 78182), (10, 39091), (13, 30070), (26, 15035), (31, 12610), (62, 6305), (65, 6014), (97, 4030), (130, 3007), (155, 2522), (194, 2015), (310, 1261), (403, 970), (485, 806)]