639187884

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{572749}}^1$

素因数の和:572790

約数の個数: 36

約数和(自身を含む): 1667848000

約数和(自身を除く): 1028660116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 572749, 1145498, 1718247, 2290996, 3436494, 5154741, 6872988, 10309482, 17755219, 20618964, 35510438, 53265657, 71020876, 106531314, 159796971, 213062628, 319593942, 639187884]

約数ペア:

[(1, 639187884), (2, 319593942), (3, 213062628), (4, 159796971), (6, 106531314), (9, 71020876), (12, 53265657), (18, 35510438), (31, 20618964), (36, 17755219), (62, 10309482), (93, 6872988), (124, 5154741), (186, 3436494), (279, 2290996), (372, 1718247), (558, 1145498), (1116, 572749)]