849207740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1\times {\mathrm{1367}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 1809864000

約数和(自身を除く): 960656260

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 349, 356, 445, 698, 890, 1367, 1396, 1745, 1780, 2734, 3490, 5468, 6835, 6980, 13670, 27340, 31061, 62122, 121663, 124244, 155305, 243326, 310610, 477083, 486652, 608315, 621220, 954166, 1216630, 1908332, 2385415, 2433260, 4770830, 9541660, 42460387, 84920774, 169841548, 212301935, 424603870, 849207740]

約数ペア:

[(1, 849207740), (2, 424603870), (4, 212301935), (5, 169841548), (10, 84920774), (20, 42460387), (89, 9541660), (178, 4770830), (349, 2433260), (356, 2385415), (445, 1908332), (698, 1216630), (890, 954166), (1367, 621220), (1396, 608315), (1745, 486652), (1780, 477083), (2734, 310610), (3490, 243326), (5468, 155305), (6835, 124244), (6980, 121663), (13670, 62122), (27340, 31061)]