78701740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{719}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 178657920

約数和(自身を除く): 99956180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 421, 719, 842, 1438, 1684, 2105, 2876, 3595, 4210, 5473, 7190, 8420, 9347, 10946, 14380, 18694, 21892, 27365, 37388, 46735, 54730, 93470, 109460, 186940, 302699, 605398, 1210796, 1513495, 3026990, 3935087, 6053980, 7870174, 15740348, 19675435, 39350870, 78701740]

約数ペア:

[(1, 78701740), (2, 39350870), (4, 19675435), (5, 15740348), (10, 7870174), (13, 6053980), (20, 3935087), (26, 3026990), (52, 1513495), (65, 1210796), (130, 605398), (260, 302699), (421, 186940), (719, 109460), (842, 93470), (1438, 54730), (1684, 46735), (2105, 37388), (2876, 27365), (3595, 21892), (4210, 18694), (5473, 14380), (7190, 10946), (8420, 9347)]