31997728

素因数分解:

$2^5\times 7^1\times {\mathrm{211}}^1\times {\mathrm{677}}^1$

素因数の和:905

約数の個数: 48

約数和(自身を含む): 72442944

約数和(自身を除く): 40445216

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 211, 224, 422, 677, 844, 1354, 1477, 1688, 2708, 2954, 3376, 4739, 5416, 5908, 6752, 9478, 10832, 11816, 18956, 21664, 23632, 37912, 47264, 75824, 142847, 151648, 285694, 571388, 999929, 1142776, 1999858, 2285552, 3999716, 4571104, 7999432, 15998864, 31997728]

約数ペア:

[(1, 31997728), (2, 15998864), (4, 7999432), (7, 4571104), (8, 3999716), (14, 2285552), (16, 1999858), (28, 1142776), (32, 999929), (56, 571388), (112, 285694), (211, 151648), (224, 142847), (422, 75824), (677, 47264), (844, 37912), (1354, 23632), (1477, 21664), (1688, 18956), (2708, 11816), (2954, 10832), (3376, 9478), (4739, 6752), (5416, 5908)]