261229390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{3769}}^1$

素因数の和:4044

約数の個数: 32

約数和(自身を含む): 488592000

約数和(自身を除く): 227362610

約数列:

[1, 2, 5, 10, 29, 58, 145, 239, 290, 478, 1195, 2390, 3769, 6931, 7538, 13862, 18845, 34655, 37690, 69310, 109301, 218602, 546505, 900791, 1093010, 1801582, 4503955, 9007910, 26122939, 52245878, 130614695, 261229390]

約数ペア:

[(1, 261229390), (2, 130614695), (5, 52245878), (10, 26122939), (29, 9007910), (58, 4503955), (145, 1801582), (239, 1093010), (290, 900791), (478, 546505), (1195, 218602), (2390, 109301), (3769, 69310), (6931, 37690), (7538, 34655), (13862, 18845)]