81431172

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{557}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 214486272

約数和(自身を除く): 133055100

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 131, 186, 262, 279, 372, 393, 524, 557, 558, 786, 1114, 1116, 1179, 1572, 1671, 2228, 2358, 3342, 4061, 4716, 5013, 6684, 8122, 10026, 12183, 16244, 17267, 20052, 24366, 34534, 36549, 48732, 51801, 69068, 72967, 73098, 103602, 145934, 146196, 155403, 207204, 218901, 291868, 310806, 437802, 621612, 656703, 875604, 1313406, 2261977, 2626812, 4523954, 6785931, 9047908, 13571862, 20357793, 27143724, 40715586, 81431172]

約数ペア:

[(1, 81431172), (2, 40715586), (3, 27143724), (4, 20357793), (6, 13571862), (9, 9047908), (12, 6785931), (18, 4523954), (31, 2626812), (36, 2261977), (62, 1313406), (93, 875604), (124, 656703), (131, 621612), (186, 437802), (262, 310806), (279, 291868), (372, 218901), (393, 207204), (524, 155403), (557, 146196), (558, 145934), (786, 103602), (1114, 73098), (1116, 72967), (1179, 69068), (1572, 51801), (1671, 48732), (2228, 36549), (2358, 34534), (3342, 24366), (4061, 20052), (4716, 17267), (5013, 16244), (6684, 12183), (8122, 10026)]