2777180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{239}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 3996580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 239, 332, 415, 478, 581, 830, 956, 1162, 1195, 1660, 1673, 2324, 2390, 2905, 3346, 4780, 5810, 6692, 8365, 11620, 16730, 19837, 33460, 39674, 79348, 99185, 138859, 198370, 277718, 396740, 555436, 694295, 1388590, 2777180]

約数ペア:

[(1, 2777180), (2, 1388590), (4, 694295), (5, 555436), (7, 396740), (10, 277718), (14, 198370), (20, 138859), (28, 99185), (35, 79348), (70, 39674), (83, 33460), (140, 19837), (166, 16730), (239, 11620), (332, 8365), (415, 6692), (478, 5810), (581, 4780), (830, 3346), (956, 2905), (1162, 2390), (1195, 2324), (1660, 1673)]