18560872

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 42379200

約数和(自身を除く): 23818328

約数列:

[1, 2, 4, 8, 11, 17, 19, 22, 34, 38, 44, 68, 76, 88, 136, 152, 187, 209, 323, 374, 418, 646, 653, 748, 836, 1292, 1306, 1496, 1672, 2584, 2612, 3553, 5224, 7106, 7183, 11101, 12407, 14212, 14366, 22202, 24814, 28424, 28732, 44404, 49628, 57464, 88808, 99256, 122111, 136477, 210919, 244222, 272954, 421838, 488444, 545908, 843676, 976888, 1091816, 1687352, 2320109, 4640218, 9280436, 18560872]

約数ペア:

[(1, 18560872), (2, 9280436), (4, 4640218), (8, 2320109), (11, 1687352), (17, 1091816), (19, 976888), (22, 843676), (34, 545908), (38, 488444), (44, 421838), (68, 272954), (76, 244222), (88, 210919), (136, 136477), (152, 122111), (187, 99256), (209, 88808), (323, 57464), (374, 49628), (418, 44404), (646, 28732), (653, 28424), (748, 24814), (836, 22202), (1292, 14366), (1306, 14212), (1496, 12407), (1672, 11101), (2584, 7183), (2612, 7106), (3553, 5224)]