15198625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 32

約数和(自身を含む): 20966400

約数和(自身を除く): 5767775

約数列:

[1, 5, 13, 25, 47, 65, 125, 199, 235, 325, 611, 995, 1175, 1625, 2587, 3055, 4975, 5875, 9353, 12935, 15275, 24875, 46765, 64675, 76375, 121589, 233825, 323375, 607945, 1169125, 3039725, 15198625]

約数ペア:

[(1, 15198625), (5, 3039725), (13, 1169125), (25, 607945), (47, 323375), (65, 233825), (125, 121589), (199, 76375), (235, 64675), (325, 46765), (611, 24875), (995, 15275), (1175, 12935), (1625, 9353), (2587, 5875), (3055, 4975)]