72643805

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:450

約数の個数: 32

約数和(自身を含む): 100245600

約数和(自身を除く): 27601795

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 389, 845, 1105, 1945, 2197, 2873, 5057, 6613, 10985, 14365, 25285, 33065, 37349, 65741, 85969, 186745, 328705, 429845, 854633, 1117597, 4273165, 5587985, 14528761, 72643805]

約数ペア:

[(1, 72643805), (5, 14528761), (13, 5587985), (17, 4273165), (65, 1117597), (85, 854633), (169, 429845), (221, 328705), (389, 186745), (845, 85969), (1105, 65741), (1945, 37349), (2197, 33065), (2873, 25285), (5057, 14365), (6613, 10985)]