68644720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{45161}}^1$

素因数の和:45193

約数の個数: 40

約数和(自身を含む): 168002640

約数和(自身を除く): 99357920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 45161, 90322, 180644, 225805, 361288, 451610, 722576, 858059, 903220, 1716118, 1806440, 3432236, 3612880, 4290295, 6864472, 8580590, 13728944, 17161180, 34322360, 68644720]

約数ペア:

[(1, 68644720), (2, 34322360), (4, 17161180), (5, 13728944), (8, 8580590), (10, 6864472), (16, 4290295), (19, 3612880), (20, 3432236), (38, 1806440), (40, 1716118), (76, 903220), (80, 858059), (95, 722576), (152, 451610), (190, 361288), (304, 225805), (380, 180644), (760, 90322), (1520, 45161)]