128529680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{84559}}^1$

素因数の和:84591

約数の個数: 40

約数和(自身を含む): 314563200

約数和(自身を除く): 186033520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 84559, 169118, 338236, 422795, 676472, 845590, 1352944, 1606621, 1691180, 3213242, 3382360, 6426484, 6764720, 8033105, 12852968, 16066210, 25705936, 32132420, 64264840, 128529680]

約数ペア:

[(1, 128529680), (2, 64264840), (4, 32132420), (5, 25705936), (8, 16066210), (10, 12852968), (16, 8033105), (19, 6764720), (20, 6426484), (38, 3382360), (40, 3213242), (76, 1691180), (80, 1606621), (95, 1352944), (152, 845590), (190, 676472), (304, 422795), (380, 338236), (760, 169118), (1520, 84559)]