51139660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17881}}^1$

素因数の和:17914

約数の個数: 48

約数和(自身を含む): 126175392

約数和(自身を除く): 75035732

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 17881, 35762, 71524, 89405, 178810, 196691, 232453, 357620, 393382, 464906, 786764, 929812, 983455, 1162265, 1966910, 2324530, 2556983, 3933820, 4649060, 5113966, 10227932, 12784915, 25569830, 51139660]

約数ペア:

[(1, 51139660), (2, 25569830), (4, 12784915), (5, 10227932), (10, 5113966), (11, 4649060), (13, 3933820), (20, 2556983), (22, 2324530), (26, 1966910), (44, 1162265), (52, 983455), (55, 929812), (65, 786764), (110, 464906), (130, 393382), (143, 357620), (220, 232453), (260, 196691), (286, 178810), (572, 89405), (715, 71524), (1430, 35762), (2860, 17881)]