12760840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:334

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 17721080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 41, 62, 82, 124, 155, 164, 205, 248, 251, 310, 328, 410, 502, 620, 820, 1004, 1240, 1255, 1271, 1640, 2008, 2510, 2542, 5020, 5084, 6355, 7781, 10040, 10168, 10291, 12710, 15562, 20582, 25420, 31124, 38905, 41164, 50840, 51455, 62248, 77810, 82328, 102910, 155620, 205820, 311240, 319021, 411640, 638042, 1276084, 1595105, 2552168, 3190210, 6380420, 12760840]

約数ペア:

[(1, 12760840), (2, 6380420), (4, 3190210), (5, 2552168), (8, 1595105), (10, 1276084), (20, 638042), (31, 411640), (40, 319021), (41, 311240), (62, 205820), (82, 155620), (124, 102910), (155, 82328), (164, 77810), (205, 62248), (248, 51455), (251, 50840), (310, 41164), (328, 38905), (410, 31124), (502, 25420), (620, 20582), (820, 15562), (1004, 12710), (1240, 10291), (1255, 10168), (1271, 10040), (1640, 7781), (2008, 6355), (2510, 5084), (2542, 5020)]