639194610

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{25037}}^1$

素因数の和:25107

約数の個数: 64

約数和(自身を含む): 1644095232

約数和(自身を除く): 1004900622

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 37, 46, 69, 74, 111, 115, 138, 185, 222, 230, 345, 370, 555, 690, 851, 1110, 1702, 2553, 4255, 5106, 8510, 12765, 25037, 25530, 50074, 75111, 125185, 150222, 250370, 375555, 575851, 751110, 926369, 1151702, 1727553, 1852738, 2779107, 2879255, 3455106, 4631845, 5558214, 5758510, 8637765, 9263690, 13895535, 17275530, 21306487, 27791070, 42612974, 63919461, 106532435, 127838922, 213064870, 319597305, 639194610]

約数ペア:

[(1, 639194610), (2, 319597305), (3, 213064870), (5, 127838922), (6, 106532435), (10, 63919461), (15, 42612974), (23, 27791070), (30, 21306487), (37, 17275530), (46, 13895535), (69, 9263690), (74, 8637765), (111, 5758510), (115, 5558214), (138, 4631845), (185, 3455106), (222, 2879255), (230, 2779107), (345, 1852738), (370, 1727553), (555, 1151702), (690, 926369), (851, 751110), (1110, 575851), (1702, 375555), (2553, 250370), (4255, 150222), (5106, 125185), (8510, 75111), (12765, 50074), (25037, 25530)]