68629280

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1669}}^1$

素因数の和:1941

約数の個数: 48

約数和(自身を含む): 162865080

約数和(自身を除く): 94235800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 1669, 2056, 2570, 3338, 4112, 5140, 6676, 8224, 8345, 10280, 13352, 16690, 20560, 26704, 33380, 41120, 53408, 66760, 133520, 267040, 428933, 857866, 1715732, 2144665, 3431464, 4289330, 6862928, 8578660, 13725856, 17157320, 34314640, 68629280]

約数ペア:

[(1, 68629280), (2, 34314640), (4, 17157320), (5, 13725856), (8, 8578660), (10, 6862928), (16, 4289330), (20, 3431464), (32, 2144665), (40, 1715732), (80, 857866), (160, 428933), (257, 267040), (514, 133520), (1028, 66760), (1285, 53408), (1669, 41120), (2056, 33380), (2570, 26704), (3338, 20560), (4112, 16690), (5140, 13352), (6676, 10280), (8224, 8345)]