218514915

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:498

約数の個数: 80

約数和(自身を含む): 419047200

約数和(自身を除く): 200532285

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 73, 81, 95, 135, 171, 219, 285, 365, 389, 405, 513, 657, 855, 1095, 1167, 1387, 1539, 1945, 1971, 2565, 3285, 3501, 4161, 5835, 5913, 6935, 7391, 7695, 9855, 10503, 12483, 17505, 20805, 22173, 28397, 29565, 31509, 36955, 37449, 52515, 62415, 66519, 85191, 110865, 112347, 141985, 157545, 187245, 199557, 255573, 332595, 425955, 539543, 561735, 598671, 766719, 997785, 1277865, 1618629, 2300157, 2697715, 2993355, 3833595, 4855887, 8093145, 11500785, 14567661, 24279435, 43702983, 72838305, 218514915]

約数ペア:

[(1, 218514915), (3, 72838305), (5, 43702983), (9, 24279435), (15, 14567661), (19, 11500785), (27, 8093145), (45, 4855887), (57, 3833595), (73, 2993355), (81, 2697715), (95, 2300157), (135, 1618629), (171, 1277865), (219, 997785), (285, 766719), (365, 598671), (389, 561735), (405, 539543), (513, 425955), (657, 332595), (855, 255573), (1095, 199557), (1167, 187245), (1387, 157545), (1539, 141985), (1945, 112347), (1971, 110865), (2565, 85191), (3285, 66519), (3501, 62415), (4161, 52515), (5835, 37449), (5913, 36955), (6935, 31509), (7391, 29565), (7695, 28397), (9855, 22173), (10503, 20805), (12483, 17505)]