80123840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:286

約数の個数: 112

約数和(自身を含む): 202777344

約数和(自身を除く): 122653504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 64, 80, 82, 124, 155, 160, 164, 197, 205, 248, 310, 320, 328, 394, 410, 496, 620, 656, 788, 820, 985, 992, 1240, 1271, 1312, 1576, 1640, 1970, 1984, 2480, 2542, 2624, 3152, 3280, 3940, 4960, 5084, 6107, 6304, 6355, 6560, 7880, 8077, 9920, 10168, 12214, 12608, 12710, 13120, 15760, 16154, 20336, 24428, 25420, 30535, 31520, 32308, 40385, 40672, 48856, 50840, 61070, 63040, 64616, 80770, 81344, 97712, 101680, 122140, 129232, 161540, 195424, 203360, 244280, 250387, 258464, 323080, 390848, 406720, 488560, 500774, 516928, 646160, 977120, 1001548, 1251935, 1292320, 1954240, 2003096, 2503870, 2584640, 4006192, 5007740, 8012384, 10015480, 16024768, 20030960, 40061920, 80123840]

約数ペア:

[(1, 80123840), (2, 40061920), (4, 20030960), (5, 16024768), (8, 10015480), (10, 8012384), (16, 5007740), (20, 4006192), (31, 2584640), (32, 2503870), (40, 2003096), (41, 1954240), (62, 1292320), (64, 1251935), (80, 1001548), (82, 977120), (124, 646160), (155, 516928), (160, 500774), (164, 488560), (197, 406720), (205, 390848), (248, 323080), (310, 258464), (320, 250387), (328, 244280), (394, 203360), (410, 195424), (496, 161540), (620, 129232), (656, 122140), (788, 101680), (820, 97712), (985, 81344), (992, 80770), (1240, 64616), (1271, 63040), (1312, 61070), (1576, 50840), (1640, 48856), (1970, 40672), (1984, 40385), (2480, 32308), (2542, 31520), (2624, 30535), (3152, 25420), (3280, 24428), (3940, 20336), (4960, 16154), (5084, 15760), (6107, 13120), (6304, 12710), (6355, 12608), (6560, 12214), (7880, 10168), (8077, 9920)]