15391025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 22498560

約数和(自身を除く): 7107535

約数列:

[1, 5, 13, 23, 25, 29, 65, 71, 115, 145, 299, 325, 355, 377, 575, 667, 725, 923, 1495, 1633, 1775, 1885, 2059, 3335, 4615, 7475, 8165, 8671, 9425, 10295, 16675, 21229, 23075, 26767, 40825, 43355, 47357, 51475, 106145, 133835, 216775, 236785, 530725, 615641, 669175, 1183925, 3078205, 15391025]

約数ペア:

[(1, 15391025), (5, 3078205), (13, 1183925), (23, 669175), (25, 615641), (29, 530725), (65, 236785), (71, 216775), (115, 133835), (145, 106145), (299, 51475), (325, 47357), (355, 43355), (377, 40825), (575, 26767), (667, 23075), (725, 21229), (923, 16675), (1495, 10295), (1633, 9425), (1775, 8671), (1885, 8165), (2059, 7475), (3335, 4615)]