1378960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1567}}^1$

素因数の和:1591

約数の個数: 40

約数和(自身を含む): 3499776

約数和(自身を除く): 2120816

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1567, 3134, 6268, 7835, 12536, 15670, 17237, 25072, 31340, 34474, 62680, 68948, 86185, 125360, 137896, 172370, 275792, 344740, 689480, 1378960]

約数ペア:

[(1, 1378960), (2, 689480), (4, 344740), (5, 275792), (8, 172370), (10, 137896), (11, 125360), (16, 86185), (20, 68948), (22, 62680), (40, 34474), (44, 31340), (55, 25072), (80, 17237), (88, 15670), (110, 12536), (176, 7835), (220, 6268), (440, 3134), (880, 1567)]