129421280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{269}}^1$

素因数の和:412

約数の個数: 96

約数和(自身を含む): 320060160

約数和(自身を除く): 190638880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 97, 124, 155, 160, 194, 248, 269, 310, 388, 485, 496, 538, 620, 776, 970, 992, 1076, 1240, 1345, 1552, 1940, 2152, 2480, 2690, 3007, 3104, 3880, 4304, 4960, 5380, 6014, 7760, 8339, 8608, 10760, 12028, 15035, 15520, 16678, 21520, 24056, 26093, 30070, 33356, 41695, 43040, 48112, 52186, 60140, 66712, 83390, 96224, 104372, 120280, 130465, 133424, 166780, 208744, 240560, 260930, 266848, 333560, 417488, 481120, 521860, 667120, 808883, 834976, 1043720, 1334240, 1617766, 2087440, 3235532, 4044415, 4174880, 6471064, 8088830, 12942128, 16177660, 25884256, 32355320, 64710640, 129421280]

約数ペア:

[(1, 129421280), (2, 64710640), (4, 32355320), (5, 25884256), (8, 16177660), (10, 12942128), (16, 8088830), (20, 6471064), (31, 4174880), (32, 4044415), (40, 3235532), (62, 2087440), (80, 1617766), (97, 1334240), (124, 1043720), (155, 834976), (160, 808883), (194, 667120), (248, 521860), (269, 481120), (310, 417488), (388, 333560), (485, 266848), (496, 260930), (538, 240560), (620, 208744), (776, 166780), (970, 133424), (992, 130465), (1076, 120280), (1240, 104372), (1345, 96224), (1552, 83390), (1940, 66712), (2152, 60140), (2480, 52186), (2690, 48112), (3007, 43040), (3104, 41695), (3880, 33356), (4304, 30070), (4960, 26093), (5380, 24056), (6014, 21520), (7760, 16678), (8339, 15520), (8608, 15035), (10760, 12028)]