249360280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{499}}^1$

素因数の和:585

約数の個数: 96

約数和(自身を含む): 625590000

約数和(自身を除く): 376229720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 499, 520, 620, 806, 961, 998, 1240, 1612, 1922, 1996, 2015, 2495, 3224, 3844, 3992, 4030, 4805, 4990, 6487, 7688, 8060, 9610, 9980, 12493, 12974, 15469, 16120, 19220, 19960, 24986, 25948, 30938, 32435, 38440, 49972, 51896, 61876, 62465, 64870, 77345, 99944, 123752, 124930, 129740, 154690, 201097, 249860, 259480, 309380, 402194, 479539, 499720, 618760, 804388, 959078, 1005485, 1608776, 1918156, 2010970, 2397695, 3836312, 4021940, 4795390, 6234007, 8043880, 9590780, 12468014, 19181560, 24936028, 31170035, 49872056, 62340070, 124680140, 249360280]

約数ペア:

[(1, 249360280), (2, 124680140), (4, 62340070), (5, 49872056), (8, 31170035), (10, 24936028), (13, 19181560), (20, 12468014), (26, 9590780), (31, 8043880), (40, 6234007), (52, 4795390), (62, 4021940), (65, 3836312), (104, 2397695), (124, 2010970), (130, 1918156), (155, 1608776), (248, 1005485), (260, 959078), (310, 804388), (403, 618760), (499, 499720), (520, 479539), (620, 402194), (806, 309380), (961, 259480), (998, 249860), (1240, 201097), (1612, 154690), (1922, 129740), (1996, 124930), (2015, 123752), (2495, 99944), (3224, 77345), (3844, 64870), (3992, 62465), (4030, 61876), (4805, 51896), (4990, 49972), (6487, 38440), (7688, 32435), (8060, 30938), (9610, 25948), (9980, 24986), (12493, 19960), (12974, 19220), (15469, 16120)]