639266934

素因数分解:

$2^1\times 3^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{25087}}^1$

素因数の和:25260

約数の個数: 32

約数和(自身を含む): 1329463296

約数和(自身を除く): 690196362

約数列:

[1, 2, 3, 6, 31, 62, 93, 137, 186, 274, 411, 822, 4247, 8494, 12741, 25087, 25482, 50174, 75261, 150522, 777697, 1555394, 2333091, 3436919, 4666182, 6873838, 10310757, 20621514, 106544489, 213088978, 319633467, 639266934]

約数ペア:

[(1, 639266934), (2, 319633467), (3, 213088978), (6, 106544489), (31, 20621514), (62, 10310757), (93, 6873838), (137, 4666182), (186, 3436919), (274, 2333091), (411, 1555394), (822, 777697), (4247, 150522), (8494, 75261), (12741, 50174), (25087, 25482)]