851820320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{409529}}^1$

素因数の和:409557

約数の個数: 48

約数和(自身を含む): 2167232760

約数和(自身を除く): 1315412440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 409529, 819058, 1638116, 2047645, 3276232, 4095290, 5323877, 6552464, 8190580, 10647754, 13104928, 16381160, 21295508, 26619385, 32762320, 42591016, 53238770, 65524640, 85182032, 106477540, 170364064, 212955080, 425910160, 851820320]

約数ペア:

[(1, 851820320), (2, 425910160), (4, 212955080), (5, 170364064), (8, 106477540), (10, 85182032), (13, 65524640), (16, 53238770), (20, 42591016), (26, 32762320), (32, 26619385), (40, 21295508), (52, 16381160), (65, 13104928), (80, 10647754), (104, 8190580), (130, 6552464), (160, 5323877), (208, 4095290), (260, 3276232), (416, 2047645), (520, 1638116), (1040, 819058), (2080, 409529)]