1290985852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{178609}}^1$

素因数の和:178765

約数の個数: 24

約数和(自身を含む): 2450529200

約数和(自身を除く): 1159543348

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 3614, 7228, 178609, 357218, 714436, 2321917, 4643834, 9287668, 24826651, 49653302, 99306604, 322746463, 645492926, 1290985852]

約数ペア:

[(1, 1290985852), (2, 645492926), (4, 322746463), (13, 99306604), (26, 49653302), (52, 24826651), (139, 9287668), (278, 4643834), (556, 2321917), (1807, 714436), (3614, 357218), (7228, 178609)]