129987650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6451}}^1$

素因数の和:6507

約数の個数: 48

約数和(自身を含む): 268816128

約数和(自身を除く): 138828478

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 4030, 6451, 10075, 12902, 20150, 32255, 64510, 83863, 161275, 167726, 199981, 322550, 399962, 419315, 838630, 999905, 1999810, 2096575, 2599753, 4193150, 4999525, 5199506, 9999050, 12998765, 25997530, 64993825, 129987650]

約数ペア:

[(1, 129987650), (2, 64993825), (5, 25997530), (10, 12998765), (13, 9999050), (25, 5199506), (26, 4999525), (31, 4193150), (50, 2599753), (62, 2096575), (65, 1999810), (130, 999905), (155, 838630), (310, 419315), (325, 399962), (403, 322550), (650, 199981), (775, 167726), (806, 161275), (1550, 83863), (2015, 64510), (4030, 32255), (6451, 20150), (10075, 12902)]