997441120

素因数分解:

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

素因数の和:589

約数の個数: 144

約数和(自身を含む): 2627478000

約数和(自身を除く): 1630036880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 65, 80, 104, 124, 130, 155, 160, 208, 248, 260, 310, 403, 416, 496, 499, 520, 620, 806, 961, 992, 998, 1040, 1240, 1612, 1922, 1996, 2015, 2080, 2480, 2495, 3224, 3844, 3992, 4030, 4805, 4960, 4990, 6448, 6487, 7688, 7984, 8060, 9610, 9980, 12493, 12896, 12974, 15376, 15469, 15968, 16120, 19220, 19960, 24986, 25948, 30752, 30938, 32240, 32435, 38440, 39920, 49972, 51896, 61876, 62465, 64480, 64870, 76880, 77345, 79840, 99944, 103792, 123752, 124930, 129740, 153760, 154690, 199888, 201097, 207584, 247504, 249860, 259480, 309380, 399776, 402194, 479539, 495008, 499720, 518960, 618760, 804388, 959078, 999440, 1005485, 1037920, 1237520, 1608776, 1918156, 1998880, 2010970, 2397695, 2475040, 3217552, 3836312, 4021940, 4795390, 6234007, 6435104, 7672624, 8043880, 9590780, 12468014, 15345248, 16087760, 19181560, 24936028, 31170035, 32175520, 38363120, 49872056, 62340070, 76726240, 99744112, 124680140, 199488224, 249360280, 498720560, 997441120]

約数ペア:

[(1, 997441120), (2, 498720560), (4, 249360280), (5, 199488224), (8, 124680140), (10, 99744112), (13, 76726240), (16, 62340070), (20, 49872056), (26, 38363120), (31, 32175520), (32, 31170035), (40, 24936028), (52, 19181560), (62, 16087760), (65, 15345248), (80, 12468014), (104, 9590780), (124, 8043880), (130, 7672624), (155, 6435104), (160, 6234007), (208, 4795390), (248, 4021940), (260, 3836312), (310, 3217552), (403, 2475040), (416, 2397695), (496, 2010970), (499, 1998880), (520, 1918156), (620, 1608776), (806, 1237520), (961, 1037920), (992, 1005485), (998, 999440), (1040, 959078), (1240, 804388), (1612, 618760), (1922, 518960), (1996, 499720), (2015, 495008), (2080, 479539), (2480, 402194), (2495, 399776), (3224, 309380), (3844, 259480), (3992, 249860), (4030, 247504), (4805, 207584), (4960, 201097), (4990, 199888), (6448, 154690), (6487, 153760), (7688, 129740), (7984, 124930), (8060, 123752), (9610, 103792), (9980, 99944), (12493, 79840), (12896, 77345), (12974, 76880), (15376, 64870), (15469, 64480), (15968, 62465), (16120, 61876), (19220, 51896), (19960, 49972), (24986, 39920), (25948, 38440), (30752, 32435), (30938, 32240)]