639226744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{17713}}^1$

素因数の和:18079

約数の個数: 32

約数和(自身を含む): 1294539120

約数和(自身を除く): 655312376

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 347, 694, 1388, 2776, 4511, 9022, 17713, 18044, 35426, 36088, 70852, 141704, 230269, 460538, 921076, 1842152, 6146411, 12292822, 24585644, 49171288, 79903343, 159806686, 319613372, 639226744]

約数ペア:

[(1, 639226744), (2, 319613372), (4, 159806686), (8, 79903343), (13, 49171288), (26, 24585644), (52, 12292822), (104, 6146411), (347, 1842152), (694, 921076), (1388, 460538), (2776, 230269), (4511, 141704), (9022, 70852), (17713, 36088), (18044, 35426)]