312307540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{1259}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 668908800

約数和(自身を除く): 356601260

約数列:

[1, 2, 4, 5, 10, 20, 79, 157, 158, 314, 316, 395, 628, 785, 790, 1259, 1570, 1580, 2518, 3140, 5036, 6295, 12403, 12590, 24806, 25180, 49612, 62015, 99461, 124030, 197663, 198922, 248060, 395326, 397844, 497305, 790652, 988315, 994610, 1976630, 1989220, 3953260, 15615377, 31230754, 62461508, 78076885, 156153770, 312307540]

約数ペア:

[(1, 312307540), (2, 156153770), (4, 78076885), (5, 62461508), (10, 31230754), (20, 15615377), (79, 3953260), (157, 1989220), (158, 1976630), (314, 994610), (316, 988315), (395, 790652), (628, 497305), (785, 397844), (790, 395326), (1259, 248060), (1570, 198922), (1580, 197663), (2518, 124030), (3140, 99461), (5036, 62015), (6295, 49612), (12403, 25180), (12590, 24806)]