18990090

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:764

約数の個数: 96

約数和(自身を含む): 57822336

約数和(自身を除く): 38832246

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 43, 45, 63, 70, 86, 90, 105, 126, 129, 210, 215, 258, 301, 315, 387, 430, 602, 630, 645, 701, 774, 903, 1290, 1402, 1505, 1806, 1935, 2103, 2709, 3010, 3505, 3870, 4206, 4515, 4907, 5418, 6309, 7010, 9030, 9814, 10515, 12618, 13545, 14721, 21030, 24535, 27090, 29442, 30143, 31545, 44163, 49070, 60286, 63090, 73605, 88326, 90429, 147210, 150715, 180858, 211001, 220815, 271287, 301430, 422002, 441630, 452145, 542574, 633003, 904290, 1055005, 1266006, 1356435, 1899009, 2110010, 2712870, 3165015, 3798018, 6330030, 9495045, 18990090]

約数ペア:

[(1, 18990090), (2, 9495045), (3, 6330030), (5, 3798018), (6, 3165015), (7, 2712870), (9, 2110010), (10, 1899009), (14, 1356435), (15, 1266006), (18, 1055005), (21, 904290), (30, 633003), (35, 542574), (42, 452145), (43, 441630), (45, 422002), (63, 301430), (70, 271287), (86, 220815), (90, 211001), (105, 180858), (126, 150715), (129, 147210), (210, 90429), (215, 88326), (258, 73605), (301, 63090), (315, 60286), (387, 49070), (430, 44163), (602, 31545), (630, 30143), (645, 29442), (701, 27090), (774, 24535), (903, 21030), (1290, 14721), (1402, 13545), (1505, 12618), (1806, 10515), (1935, 9814), (2103, 9030), (2709, 7010), (3010, 6309), (3505, 5418), (3870, 4907), (4206, 4515)]