260456280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{997}}^1$

素因数の和:1329

約数の個数: 128

約数和(自身を含む): 896762880

約数和(自身を除く): 636306600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 311, 420, 622, 840, 933, 997, 1244, 1555, 1866, 1994, 2177, 2488, 2991, 3110, 3732, 3988, 4354, 4665, 4985, 5982, 6220, 6531, 6979, 7464, 7976, 8708, 9330, 9970, 10885, 11964, 12440, 13062, 13958, 14955, 17416, 18660, 19940, 20937, 21770, 23928, 26124, 27916, 29910, 32655, 34895, 37320, 39880, 41874, 43540, 52248, 55832, 59820, 65310, 69790, 83748, 87080, 104685, 119640, 130620, 139580, 167496, 209370, 261240, 279160, 310067, 418740, 620134, 837480, 930201, 1240268, 1550335, 1860402, 2170469, 2480536, 3100670, 3720804, 4340938, 4651005, 6201340, 6511407, 7441608, 8681876, 9302010, 10852345, 12402680, 13022814, 17363752, 18604020, 21704690, 26045628, 32557035, 37208040, 43409380, 52091256, 65114070, 86818760, 130228140, 260456280]

約数ペア:

[(1, 260456280), (2, 130228140), (3, 86818760), (4, 65114070), (5, 52091256), (6, 43409380), (7, 37208040), (8, 32557035), (10, 26045628), (12, 21704690), (14, 18604020), (15, 17363752), (20, 13022814), (21, 12402680), (24, 10852345), (28, 9302010), (30, 8681876), (35, 7441608), (40, 6511407), (42, 6201340), (56, 4651005), (60, 4340938), (70, 3720804), (84, 3100670), (105, 2480536), (120, 2170469), (140, 1860402), (168, 1550335), (210, 1240268), (280, 930201), (311, 837480), (420, 620134), (622, 418740), (840, 310067), (933, 279160), (997, 261240), (1244, 209370), (1555, 167496), (1866, 139580), (1994, 130620), (2177, 119640), (2488, 104685), (2991, 87080), (3110, 83748), (3732, 69790), (3988, 65310), (4354, 59820), (4665, 55832), (4985, 52248), (5982, 43540), (6220, 41874), (6531, 39880), (6979, 37320), (7464, 34895), (7976, 32655), (8708, 29910), (9330, 27916), (9970, 26124), (10885, 23928), (11964, 21770), (12440, 20937), (13062, 19940), (13958, 18660), (14955, 17416)]