81741688

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{27541}}^1$

素因数の和:27607

約数の個数: 32

約数和(自身を含む): 178472160

約数和(自身を除く): 96730472

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 27541, 55082, 110164, 192787, 220328, 385574, 771148, 1459673, 1542296, 2919346, 5838692, 10217711, 11677384, 20435422, 40870844, 81741688]

約数ペア:

[(1, 81741688), (2, 40870844), (4, 20435422), (7, 11677384), (8, 10217711), (14, 5838692), (28, 2919346), (53, 1542296), (56, 1459673), (106, 771148), (212, 385574), (371, 220328), (424, 192787), (742, 110164), (1484, 55082), (2968, 27541)]