90508040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{323243}}^1$

素因数の和:323261

約数の個数: 32

約数和(自身を含む): 232735680

約数和(自身を除く): 142227640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 323243, 646486, 1292972, 1616215, 2262701, 2585944, 3232430, 4525402, 6464860, 9050804, 11313505, 12929720, 18101608, 22627010, 45254020, 90508040]

約数ペア:

[(1, 90508040), (2, 45254020), (4, 22627010), (5, 18101608), (7, 12929720), (8, 11313505), (10, 9050804), (14, 6464860), (20, 4525402), (28, 3232430), (35, 2585944), (40, 2262701), (56, 1616215), (70, 1292972), (140, 646486), (280, 323243)]