20579845

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 29393280

約数和(自身を除く): 8813435

約数列:

[1, 5, 11, 13, 55, 65, 107, 143, 269, 535, 715, 1177, 1345, 1391, 2959, 3497, 5885, 6955, 14795, 15301, 17485, 28783, 38467, 76505, 143915, 192335, 316613, 374179, 1583065, 1870895, 4115969, 20579845]

約数ペア:

[(1, 20579845), (5, 4115969), (11, 1870895), (13, 1583065), (55, 374179), (65, 316613), (107, 192335), (143, 143915), (269, 76505), (535, 38467), (715, 28783), (1177, 17485), (1345, 15301), (1391, 14795), (2959, 6955), (3497, 5885)]