245527620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{314779}}^1$

素因数の和:314804

約数の個数: 48

約数和(自身を含む): 740362560

約数和(自身を除く): 494834940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 314779, 629558, 944337, 1259116, 1573895, 1888674, 3147790, 3777348, 4092127, 4721685, 6295580, 8184254, 9443370, 12276381, 16368508, 18886740, 20460635, 24552762, 40921270, 49105524, 61381905, 81842540, 122763810, 245527620]

約数ペア:

[(1, 245527620), (2, 122763810), (3, 81842540), (4, 61381905), (5, 49105524), (6, 40921270), (10, 24552762), (12, 20460635), (13, 18886740), (15, 16368508), (20, 12276381), (26, 9443370), (30, 8184254), (39, 6295580), (52, 4721685), (60, 4092127), (65, 3777348), (78, 3147790), (130, 1888674), (156, 1573895), (195, 1259116), (260, 944337), (390, 629558), (780, 314779)]