26956540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{521}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 61387200

約数和(自身を除く): 34430660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 199, 260, 398, 521, 796, 995, 1042, 1990, 2084, 2587, 2605, 3980, 5174, 5210, 6773, 10348, 10420, 12935, 13546, 25870, 27092, 33865, 51740, 67730, 103679, 135460, 207358, 414716, 518395, 1036790, 1347827, 2073580, 2695654, 5391308, 6739135, 13478270, 26956540]

約数ペア:

[(1, 26956540), (2, 13478270), (4, 6739135), (5, 5391308), (10, 2695654), (13, 2073580), (20, 1347827), (26, 1036790), (52, 518395), (65, 414716), (130, 207358), (199, 135460), (260, 103679), (398, 67730), (521, 51740), (796, 33865), (995, 27092), (1042, 25870), (1990, 13546), (2084, 12935), (2587, 10420), (2605, 10348), (3980, 6773), (5174, 5210)]