20181255975

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{421}}^1\times {\mathrm{1511}}^1$

素因数の和:1998

約数の個数: 96

約数和(自身を含む): 37977569280

約数和(自身を除く): 17796313305

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 225, 235, 421, 423, 675, 705, 1175, 1263, 1269, 1511, 2105, 2115, 3525, 3789, 4533, 6315, 6345, 7555, 10525, 10575, 11367, 13599, 18945, 19787, 22665, 31575, 31725, 37775, 40797, 56835, 59361, 67995, 71017, 94725, 98935, 113325, 178083, 203985, 213051, 284175, 296805, 339975, 355085, 494675, 534249, 636131, 639153, 890415, 1019925, 1065255, 1484025, 1775425, 1908393, 1917459, 2671245, 3180655, 3195765, 4452075, 5326275, 5725179, 9541965, 9587295, 13356225, 15903275, 15978825, 17175537, 28625895, 29898157, 47709825, 47936475, 85877685, 89694471, 143129475, 149490785, 269083413, 429388425, 448472355, 747453925, 807250239, 1345417065, 2242361775, 4036251195, 6727085325, 20181255975]

約数ペア:

[(1, 20181255975), (3, 6727085325), (5, 4036251195), (9, 2242361775), (15, 1345417065), (25, 807250239), (27, 747453925), (45, 448472355), (47, 429388425), (75, 269083413), (135, 149490785), (141, 143129475), (225, 89694471), (235, 85877685), (421, 47936475), (423, 47709825), (675, 29898157), (705, 28625895), (1175, 17175537), (1263, 15978825), (1269, 15903275), (1511, 13356225), (2105, 9587295), (2115, 9541965), (3525, 5725179), (3789, 5326275), (4533, 4452075), (6315, 3195765), (6345, 3180655), (7555, 2671245), (10525, 1917459), (10575, 1908393), (11367, 1775425), (13599, 1484025), (18945, 1065255), (19787, 1019925), (22665, 890415), (31575, 639153), (31725, 636131), (37775, 534249), (40797, 494675), (56835, 355085), (59361, 339975), (67995, 296805), (71017, 284175), (94725, 213051), (98935, 203985), (113325, 178083)]