18420804855

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{272719}}^1$

素因数の和:272828

約数の個数: 48

約数和(自身を含む): 34035456000

約数和(自身を除く): 15614651145

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 79, 95, 171, 237, 285, 395, 711, 855, 1185, 1501, 3555, 4503, 7505, 13509, 22515, 67545, 272719, 818157, 1363595, 2454471, 4090785, 5181661, 12272355, 15544983, 21544801, 25908305, 46634949, 64634403, 77724915, 107724005, 193903209, 233174745, 323172015, 409351219, 969516045, 1228053657, 2046756095, 3684160971, 6140268285, 18420804855]

約数ペア:

[(1, 18420804855), (3, 6140268285), (5, 3684160971), (9, 2046756095), (15, 1228053657), (19, 969516045), (45, 409351219), (57, 323172015), (79, 233174745), (95, 193903209), (171, 107724005), (237, 77724915), (285, 64634403), (395, 46634949), (711, 25908305), (855, 21544801), (1185, 15544983), (1501, 12272355), (3555, 5181661), (4503, 4090785), (7505, 2454471), (13509, 1363595), (22515, 818157), (67545, 272719)]