257317360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{3347}}^1$

素因数の和:3422

約数の個数: 60

約数和(自身を含む): 618368904

約数和(自身を除く): 361051544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 961, 1240, 1922, 2480, 3347, 3844, 4805, 6694, 7688, 9610, 13388, 15376, 16735, 19220, 26776, 33470, 38440, 53552, 66940, 76880, 103757, 133880, 207514, 267760, 415028, 518785, 830056, 1037570, 1660112, 2075140, 3216467, 4150280, 6432934, 8300560, 12865868, 16082335, 25731736, 32164670, 51463472, 64329340, 128658680, 257317360]

約数ペア:

[(1, 257317360), (2, 128658680), (4, 64329340), (5, 51463472), (8, 32164670), (10, 25731736), (16, 16082335), (20, 12865868), (31, 8300560), (40, 6432934), (62, 4150280), (80, 3216467), (124, 2075140), (155, 1660112), (248, 1037570), (310, 830056), (496, 518785), (620, 415028), (961, 267760), (1240, 207514), (1922, 133880), (2480, 103757), (3347, 76880), (3844, 66940), (4805, 53552), (6694, 38440), (7688, 33470), (9610, 26776), (13388, 19220), (15376, 16735)]