91307988

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:477

約数の個数: 72

約数和(自身を含む): 236658240

約数和(自身を除く): 145350252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 139, 142, 213, 257, 278, 284, 417, 426, 514, 556, 639, 771, 834, 852, 1028, 1251, 1278, 1542, 1668, 2313, 2502, 2556, 3084, 4626, 5004, 9252, 9869, 18247, 19738, 29607, 35723, 36494, 39476, 54741, 59214, 71446, 72988, 88821, 107169, 109482, 118428, 142892, 164223, 177642, 214338, 218964, 321507, 328446, 355284, 428676, 643014, 656892, 1286028, 2536333, 5072666, 7608999, 10145332, 15217998, 22826997, 30435996, 45653994, 91307988]

約数ペア:

[(1, 91307988), (2, 45653994), (3, 30435996), (4, 22826997), (6, 15217998), (9, 10145332), (12, 7608999), (18, 5072666), (36, 2536333), (71, 1286028), (139, 656892), (142, 643014), (213, 428676), (257, 355284), (278, 328446), (284, 321507), (417, 218964), (426, 214338), (514, 177642), (556, 164223), (639, 142892), (771, 118428), (834, 109482), (852, 107169), (1028, 88821), (1251, 72988), (1278, 71446), (1542, 59214), (1668, 54741), (2313, 39476), (2502, 36494), (2556, 35723), (3084, 29607), (4626, 19738), (5004, 18247), (9252, 9869)]