251939116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1993}}^1$

素因数の和:2051

約数の個数: 72

約数和(自身を含む): 551731824

約数和(自身を除く): 299792708

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 143, 169, 187, 221, 286, 338, 374, 442, 572, 676, 748, 884, 1859, 1993, 2431, 2873, 3718, 3986, 4862, 5746, 7436, 7972, 9724, 11492, 21923, 25909, 31603, 33881, 43846, 51818, 63206, 67762, 87692, 103636, 126412, 135524, 284999, 336817, 372691, 440453, 569998, 673634, 745382, 880906, 1139996, 1347268, 1490764, 1761812, 3704987, 4844983, 5725889, 7409974, 9689966, 11451778, 14819948, 19379932, 22903556, 62984779, 125969558, 251939116]

約数ペア:

[(1, 251939116), (2, 125969558), (4, 62984779), (11, 22903556), (13, 19379932), (17, 14819948), (22, 11451778), (26, 9689966), (34, 7409974), (44, 5725889), (52, 4844983), (68, 3704987), (143, 1761812), (169, 1490764), (187, 1347268), (221, 1139996), (286, 880906), (338, 745382), (374, 673634), (442, 569998), (572, 440453), (676, 372691), (748, 336817), (884, 284999), (1859, 135524), (1993, 126412), (2431, 103636), (2873, 87692), (3718, 67762), (3986, 63206), (4862, 51818), (5746, 43846), (7436, 33881), (7972, 31603), (9724, 25909), (11492, 21923)]