18325864

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 37782180

約数和(自身を除く): 19456316

約数列:

[1, 2, 4, 8, 17, 34, 47, 61, 68, 94, 122, 136, 188, 244, 376, 488, 799, 1037, 1598, 2074, 2209, 2867, 3196, 4148, 4418, 5734, 6392, 8296, 8836, 11468, 17672, 22936, 37553, 48739, 75106, 97478, 134749, 150212, 194956, 269498, 300424, 389912, 538996, 1077992, 2290733, 4581466, 9162932, 18325864]

約数ペア:

[(1, 18325864), (2, 9162932), (4, 4581466), (8, 2290733), (17, 1077992), (34, 538996), (47, 389912), (61, 300424), (68, 269498), (94, 194956), (122, 150212), (136, 134749), (188, 97478), (244, 75106), (376, 48739), (488, 37553), (799, 22936), (1037, 17672), (1598, 11468), (2074, 8836), (2209, 8296), (2867, 6392), (3196, 5734), (4148, 4418)]