90028015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1187}}^1$

素因数の和:1407

約数の個数: 32

約数和(自身を含む): 135489024

約数和(自身を除く): 45461009

約数列:

[1, 5, 7, 11, 35, 55, 77, 197, 385, 985, 1187, 1379, 2167, 5935, 6895, 8309, 10835, 13057, 15169, 41545, 65285, 75845, 91399, 233839, 456995, 1169195, 1636873, 2572229, 8184365, 12861145, 18005603, 90028015]

約数ペア:

[(1, 90028015), (5, 18005603), (7, 12861145), (11, 8184365), (35, 2572229), (55, 1636873), (77, 1169195), (197, 456995), (385, 233839), (985, 91399), (1187, 75845), (1379, 65285), (2167, 41545), (5935, 15169), (6895, 13057), (8309, 10835)]