81859185

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{569}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 149385600

約数和(自身を除く): 67526415

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 139, 207, 345, 417, 569, 695, 1035, 1251, 1707, 2085, 2845, 3197, 5121, 6255, 8535, 9591, 13087, 15985, 25605, 28773, 39261, 47955, 65435, 79091, 117783, 143865, 196305, 237273, 395455, 588915, 711819, 1186365, 1819093, 3559095, 5457279, 9095465, 16371837, 27286395, 81859185]

約数ペア:

[(1, 81859185), (3, 27286395), (5, 16371837), (9, 9095465), (15, 5457279), (23, 3559095), (45, 1819093), (69, 1186365), (115, 711819), (139, 588915), (207, 395455), (345, 237273), (417, 196305), (569, 143865), (695, 117783), (1035, 79091), (1251, 65435), (1707, 47955), (2085, 39261), (2845, 28773), (3197, 25605), (5121, 15985), (6255, 13087), (8535, 9591)]