99971564

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:639

約数の個数: 72

約数和(自身を含む): 224940240

約数和(自身を除く): 124968676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 154, 178, 196, 308, 356, 521, 539, 623, 979, 1042, 1078, 1246, 1958, 2084, 2156, 2492, 3647, 3916, 4361, 5731, 6853, 7294, 8722, 11462, 13706, 14588, 17444, 22924, 25529, 27412, 40117, 46369, 47971, 51058, 80234, 92738, 95942, 102116, 160468, 185476, 191884, 280819, 324583, 510059, 561638, 649166, 1020118, 1123276, 1298332, 2040236, 2272081, 3570413, 4544162, 7140826, 9088324, 14281652, 24992891, 49985782, 99971564]

約数ペア:

[(1, 99971564), (2, 49985782), (4, 24992891), (7, 14281652), (11, 9088324), (14, 7140826), (22, 4544162), (28, 3570413), (44, 2272081), (49, 2040236), (77, 1298332), (89, 1123276), (98, 1020118), (154, 649166), (178, 561638), (196, 510059), (308, 324583), (356, 280819), (521, 191884), (539, 185476), (623, 160468), (979, 102116), (1042, 95942), (1078, 92738), (1246, 80234), (1958, 51058), (2084, 47971), (2156, 46369), (2492, 40117), (3647, 27412), (3916, 25529), (4361, 22924), (5731, 17444), (6853, 14588), (7294, 13706), (8722, 11462)]