20967760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23827}}^1$

素因数の和:23851

約数の個数: 40

約数和(自身を含む): 53184096

約数和(自身を除く): 32216336

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23827, 47654, 95308, 119135, 190616, 238270, 262097, 381232, 476540, 524194, 953080, 1048388, 1310485, 1906160, 2096776, 2620970, 4193552, 5241940, 10483880, 20967760]

約数ペア:

[(1, 20967760), (2, 10483880), (4, 5241940), (5, 4193552), (8, 2620970), (10, 2096776), (11, 1906160), (16, 1310485), (20, 1048388), (22, 953080), (40, 524194), (44, 476540), (55, 381232), (80, 262097), (88, 238270), (110, 190616), (176, 119135), (220, 95308), (440, 47654), (880, 23827)]