18199568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:615

約数の個数: 40

約数和(自身を含む): 37482720

約数和(自身を除く): 19283152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 131, 152, 262, 304, 457, 524, 914, 1048, 1828, 2096, 2489, 3656, 4978, 7312, 8683, 9956, 17366, 19912, 34732, 39824, 59867, 69464, 119734, 138928, 239468, 478936, 957872, 1137473, 2274946, 4549892, 9099784, 18199568]

約数ペア:

[(1, 18199568), (2, 9099784), (4, 4549892), (8, 2274946), (16, 1137473), (19, 957872), (38, 478936), (76, 239468), (131, 138928), (152, 119734), (262, 69464), (304, 59867), (457, 39824), (524, 34732), (914, 19912), (1048, 17366), (1828, 9956), (2096, 8683), (2489, 7312), (3656, 4978)]