81724428

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1109}}^1$

素因数の和:1231

約数の個数: 72

約数和(自身を含む): 218181600

約数和(自身を除く): 136457172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 89, 92, 138, 178, 207, 267, 276, 356, 414, 534, 801, 828, 1068, 1109, 1602, 2047, 2218, 3204, 3327, 4094, 4436, 6141, 6654, 8188, 9981, 12282, 13308, 18423, 19962, 24564, 25507, 36846, 39924, 51014, 73692, 76521, 98701, 102028, 153042, 197402, 229563, 296103, 306084, 394804, 459126, 592206, 888309, 918252, 1184412, 1776618, 2270123, 3553236, 4540246, 6810369, 9080492, 13620738, 20431107, 27241476, 40862214, 81724428]

約数ペア:

[(1, 81724428), (2, 40862214), (3, 27241476), (4, 20431107), (6, 13620738), (9, 9080492), (12, 6810369), (18, 4540246), (23, 3553236), (36, 2270123), (46, 1776618), (69, 1184412), (89, 918252), (92, 888309), (138, 592206), (178, 459126), (207, 394804), (267, 306084), (276, 296103), (356, 229563), (414, 197402), (534, 153042), (801, 102028), (828, 98701), (1068, 76521), (1109, 73692), (1602, 51014), (2047, 39924), (2218, 36846), (3204, 25507), (3327, 24564), (4094, 19962), (4436, 18423), (6141, 13308), (6654, 12282), (8188, 9981)]