18991170035

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{30931}}^1$

素因数の和:31259

約数の個数: 32

約数和(自身を含む): 25121733120

約数和(自身を除く): 6130563085

約数列:

[1, 5, 19, 23, 95, 115, 281, 437, 1405, 2185, 5339, 6463, 26695, 30931, 32315, 122797, 154655, 587689, 613985, 711413, 2938445, 3557065, 8691611, 13516847, 43458055, 67584235, 165140609, 199907053, 825703045, 999535265, 3798234007, 18991170035]

約数ペア:

[(1, 18991170035), (5, 3798234007), (19, 999535265), (23, 825703045), (95, 199907053), (115, 165140609), (281, 67584235), (437, 43458055), (1405, 13516847), (2185, 8691611), (5339, 3557065), (6463, 2938445), (26695, 711413), (30931, 613985), (32315, 587689), (122797, 154655)]