71270320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{80989}}^1$

素因数の和:81013

約数の個数: 40

約数和(自身を含む): 180769680

約数和(自身を除く): 109499360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 80989, 161978, 323956, 404945, 647912, 809890, 890879, 1295824, 1619780, 1781758, 3239560, 3563516, 4454395, 6479120, 7127032, 8908790, 14254064, 17817580, 35635160, 71270320]

約数ペア:

[(1, 71270320), (2, 35635160), (4, 17817580), (5, 14254064), (8, 8908790), (10, 7127032), (11, 6479120), (16, 4454395), (20, 3563516), (22, 3239560), (40, 1781758), (44, 1619780), (55, 1295824), (80, 890879), (88, 809890), (110, 647912), (176, 404945), (220, 323956), (440, 161978), (880, 80989)]