20387796

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^2$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 56405664

約数和(自身を除く): 36017868

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 109, 132, 143, 156, 218, 286, 327, 429, 436, 572, 654, 858, 1199, 1308, 1417, 1716, 2398, 2834, 3597, 4251, 4796, 5668, 7194, 8502, 11881, 14388, 15587, 17004, 23762, 31174, 35643, 46761, 47524, 62348, 71286, 93522, 130691, 142572, 154453, 187044, 261382, 308906, 392073, 463359, 522764, 617812, 784146, 926718, 1568292, 1698983, 1853436, 3397966, 5096949, 6795932, 10193898, 20387796]

約数ペア:

[(1, 20387796), (2, 10193898), (3, 6795932), (4, 5096949), (6, 3397966), (11, 1853436), (12, 1698983), (13, 1568292), (22, 926718), (26, 784146), (33, 617812), (39, 522764), (44, 463359), (52, 392073), (66, 308906), (78, 261382), (109, 187044), (132, 154453), (143, 142572), (156, 130691), (218, 93522), (286, 71286), (327, 62348), (429, 47524), (436, 46761), (572, 35643), (654, 31174), (858, 23762), (1199, 17004), (1308, 15587), (1417, 14388), (1716, 11881), (2398, 8502), (2834, 7194), (3597, 5668), (4251, 4796)]