20750478780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2488067}}^1$

素因数の和:2488218

約数の個数: 48

約数和(自身を含む): 58519359360

約数和(自身を除く): 37768880580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2780, 4170, 8340, 2488067, 4976134, 7464201, 9952268, 12440335, 14928402, 24880670, 29856804, 37321005, 49761340, 74642010, 149284020, 345841313, 691682626, 1037523939, 1383365252, 1729206565, 2075047878, 3458413130, 4150095756, 5187619695, 6916826260, 10375239390, 20750478780]

約数ペア:

[(1, 20750478780), (2, 10375239390), (3, 6916826260), (4, 5187619695), (5, 4150095756), (6, 3458413130), (10, 2075047878), (12, 1729206565), (15, 1383365252), (20, 1037523939), (30, 691682626), (60, 345841313), (139, 149284020), (278, 74642010), (417, 49761340), (556, 37321005), (695, 29856804), (834, 24880670), (1390, 14928402), (1668, 12440335), (2085, 9952268), (2780, 7464201), (4170, 4976134), (8340, 2488067)]