80528260

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 172872000

約数和(自身を除く): 92343740

約数列:

[1, 2, 4, 5, 10, 20, 83, 139, 166, 278, 332, 349, 415, 556, 695, 698, 830, 1390, 1396, 1660, 1745, 2780, 3490, 6980, 11537, 23074, 28967, 46148, 48511, 57685, 57934, 97022, 115370, 115868, 144835, 194044, 230740, 242555, 289670, 485110, 579340, 970220, 4026413, 8052826, 16105652, 20132065, 40264130, 80528260]

約数ペア:

[(1, 80528260), (2, 40264130), (4, 20132065), (5, 16105652), (10, 8052826), (20, 4026413), (83, 970220), (139, 579340), (166, 485110), (278, 289670), (332, 242555), (349, 230740), (415, 194044), (556, 144835), (695, 115868), (698, 115370), (830, 97022), (1390, 57934), (1396, 57685), (1660, 48511), (1745, 46148), (2780, 28967), (3490, 23074), (6980, 11537)]