13391475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 23569920

約数和(自身を除く): 10178445

約数列:

[1, 3, 5, 15, 25, 29, 47, 75, 87, 131, 141, 145, 235, 393, 435, 655, 705, 725, 1175, 1363, 1965, 2175, 3275, 3525, 3799, 4089, 6157, 6815, 9825, 11397, 18471, 18995, 20445, 30785, 34075, 56985, 92355, 94975, 102225, 153925, 178553, 284925, 461775, 535659, 892765, 2678295, 4463825, 13391475]

約数ペア:

[(1, 13391475), (3, 4463825), (5, 2678295), (15, 892765), (25, 535659), (29, 461775), (47, 284925), (75, 178553), (87, 153925), (131, 102225), (141, 94975), (145, 92355), (235, 56985), (393, 34075), (435, 30785), (655, 20445), (705, 18995), (725, 18471), (1175, 11397), (1363, 9825), (1965, 6815), (2175, 6157), (3275, 4089), (3525, 3799)]