18093985

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1$

素因数の和:87

約数の個数: 72

約数和(自身を含む): 30041280

約数和(自身を除く): 11947295

約数列:

[1, 5, 7, 13, 19, 23, 35, 49, 65, 91, 95, 115, 133, 161, 169, 245, 247, 299, 437, 455, 637, 665, 805, 845, 931, 1127, 1183, 1235, 1495, 1729, 2093, 2185, 3059, 3185, 3211, 3887, 4655, 5635, 5681, 5915, 8281, 8645, 10465, 12103, 14651, 15295, 16055, 19435, 21413, 22477, 27209, 28405, 39767, 41405, 60515, 73255, 73853, 107065, 112385, 136045, 157339, 190463, 198835, 278369, 369265, 516971, 786695, 952315, 1391845, 2584855, 3618797, 18093985]

約数ペア:

[(1, 18093985), (5, 3618797), (7, 2584855), (13, 1391845), (19, 952315), (23, 786695), (35, 516971), (49, 369265), (65, 278369), (91, 198835), (95, 190463), (115, 157339), (133, 136045), (161, 112385), (169, 107065), (245, 73853), (247, 73255), (299, 60515), (437, 41405), (455, 39767), (637, 28405), (665, 27209), (805, 22477), (845, 21413), (931, 19435), (1127, 16055), (1183, 15295), (1235, 14651), (1495, 12103), (1729, 10465), (2093, 8645), (2185, 8281), (3059, 5915), (3185, 5681), (3211, 5635), (3887, 4655)]