1991347204

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1531}}^1$

素因数の和:1697

約数の個数: 96

約数和(自身を含む): 4496873472

約数和(自身を除く): 2505526268

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 103, 154, 164, 206, 287, 308, 412, 451, 574, 721, 902, 1133, 1148, 1442, 1531, 1804, 2266, 2884, 3062, 3157, 4223, 4532, 6124, 6314, 7931, 8446, 10717, 12628, 15862, 16841, 16892, 21434, 29561, 31724, 33682, 42868, 46453, 59122, 62771, 67364, 92906, 117887, 118244, 125542, 157693, 185812, 235774, 251084, 315386, 325171, 439397, 471548, 630772, 650342, 690481, 878794, 1103851, 1300684, 1380962, 1734623, 1757588, 2207702, 2761924, 3469246, 4415404, 4833367, 6465413, 6938492, 9666734, 12142361, 12930826, 19333468, 24284722, 25861652, 45257891, 48569444, 71119543, 90515782, 142239086, 181031564, 284478172, 497836801, 995673602, 1991347204]

約数ペア:

[(1, 1991347204), (2, 995673602), (4, 497836801), (7, 284478172), (11, 181031564), (14, 142239086), (22, 90515782), (28, 71119543), (41, 48569444), (44, 45257891), (77, 25861652), (82, 24284722), (103, 19333468), (154, 12930826), (164, 12142361), (206, 9666734), (287, 6938492), (308, 6465413), (412, 4833367), (451, 4415404), (574, 3469246), (721, 2761924), (902, 2207702), (1133, 1757588), (1148, 1734623), (1442, 1380962), (1531, 1300684), (1804, 1103851), (2266, 878794), (2884, 690481), (3062, 650342), (3157, 630772), (4223, 471548), (4532, 439397), (6124, 325171), (6314, 315386), (7931, 251084), (8446, 235774), (10717, 185812), (12628, 157693), (15862, 125542), (16841, 118244), (16892, 117887), (21434, 92906), (29561, 67364), (31724, 62771), (33682, 59122), (42868, 46453)]