20115375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 39137280

約数和(自身を除く): 19021905

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 79, 97, 105, 125, 175, 237, 291, 375, 395, 485, 525, 553, 679, 875, 1185, 1455, 1659, 1975, 2037, 2425, 2625, 2765, 3395, 5925, 7275, 7663, 8295, 9875, 10185, 12125, 13825, 16975, 22989, 29625, 36375, 38315, 41475, 50925, 53641, 69125, 84875, 114945, 160923, 191575, 207375, 254625, 268205, 574725, 804615, 957875, 1341025, 2873625, 4023075, 6705125, 20115375]

約数ペア:

[(1, 20115375), (3, 6705125), (5, 4023075), (7, 2873625), (15, 1341025), (21, 957875), (25, 804615), (35, 574725), (75, 268205), (79, 254625), (97, 207375), (105, 191575), (125, 160923), (175, 114945), (237, 84875), (291, 69125), (375, 53641), (395, 50925), (485, 41475), (525, 38315), (553, 36375), (679, 29625), (875, 22989), (1185, 16975), (1455, 13825), (1659, 12125), (1975, 10185), (2037, 9875), (2425, 8295), (2625, 7663), (2765, 7275), (3395, 5925)]