390204440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{10151}}^1$

素因数の和:10224

約数の個数: 48

約数和(自身を含む): 907284240

約数和(自身を除く): 517079800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 7688, 9610, 10151, 19220, 20302, 38440, 40604, 50755, 81208, 101510, 203020, 314681, 406040, 629362, 1258724, 1573405, 2517448, 3146810, 6293620, 9755111, 12587240, 19510222, 39020444, 48775555, 78040888, 97551110, 195102220, 390204440]

約数ペア:

[(1, 390204440), (2, 195102220), (4, 97551110), (5, 78040888), (8, 48775555), (10, 39020444), (20, 19510222), (31, 12587240), (40, 9755111), (62, 6293620), (124, 3146810), (155, 2517448), (248, 1573405), (310, 1258724), (620, 629362), (961, 406040), (1240, 314681), (1922, 203020), (3844, 101510), (4805, 81208), (7688, 50755), (9610, 40604), (10151, 38440), (19220, 20302)]