258045476

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{19309}}^1$

素因数の和:19583

約数の個数: 24

約数和(自身を含む): 488234040

約数和(自身を除く): 230188564

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 3341, 6682, 13364, 19309, 38618, 77236, 251017, 502034, 1004068, 4962413, 9924826, 19849652, 64511369, 129022738, 258045476]

約数ペア:

[(1, 258045476), (2, 129022738), (4, 64511369), (13, 19849652), (26, 9924826), (52, 4962413), (257, 1004068), (514, 502034), (1028, 251017), (3341, 77236), (6682, 38618), (13364, 19309)]