18639344

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:210

約数の個数: 60

約数和(自身を含む): 39971400

約数和(自身を除く): 21332056

約数列:

[1, 2, 4, 8, 16, 17, 29, 34, 58, 68, 116, 136, 139, 232, 272, 278, 289, 464, 493, 556, 578, 986, 1112, 1156, 1972, 2224, 2312, 2363, 3944, 4031, 4624, 4726, 7888, 8062, 8381, 9452, 16124, 16762, 18904, 32248, 33524, 37808, 40171, 64496, 67048, 68527, 80342, 134096, 137054, 160684, 274108, 321368, 548216, 642736, 1096432, 1164959, 2329918, 4659836, 9319672, 18639344]

約数ペア:

[(1, 18639344), (2, 9319672), (4, 4659836), (8, 2329918), (16, 1164959), (17, 1096432), (29, 642736), (34, 548216), (58, 321368), (68, 274108), (116, 160684), (136, 137054), (139, 134096), (232, 80342), (272, 68527), (278, 67048), (289, 64496), (464, 40171), (493, 37808), (556, 33524), (578, 32248), (986, 18904), (1112, 16762), (1156, 16124), (1972, 9452), (2224, 8381), (2312, 8062), (2363, 7888), (3944, 4726), (4031, 4624)]