287777475

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^2\times {\mathrm{193}}^1$

素因数の和:306

約数の個数: 72

約数和(自身を含む): 542943920

約数和(自身を除く): 255166445

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 193, 225, 235, 423, 579, 675, 705, 965, 1175, 1269, 1737, 2115, 2209, 2895, 3525, 4825, 5211, 6345, 6627, 8685, 9071, 10575, 11045, 14475, 19881, 26055, 27213, 31725, 33135, 43425, 45355, 55225, 59643, 81639, 99405, 130275, 136065, 165675, 226775, 244917, 298215, 408195, 426337, 497025, 680325, 1224585, 1279011, 1491075, 2040975, 2131685, 3837033, 6122925, 6395055, 10658425, 11511099, 19185165, 31975275, 57555495, 95925825, 287777475]

約数ペア:

[(1, 287777475), (3, 95925825), (5, 57555495), (9, 31975275), (15, 19185165), (25, 11511099), (27, 10658425), (45, 6395055), (47, 6122925), (75, 3837033), (135, 2131685), (141, 2040975), (193, 1491075), (225, 1279011), (235, 1224585), (423, 680325), (579, 497025), (675, 426337), (705, 408195), (965, 298215), (1175, 244917), (1269, 226775), (1737, 165675), (2115, 136065), (2209, 130275), (2895, 99405), (3525, 81639), (4825, 59643), (5211, 55225), (6345, 45355), (6627, 43425), (8685, 33135), (9071, 31725), (10575, 27213), (11045, 26055), (14475, 19881)]