257299740

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2237}}^1$

素因数の和:2329

約数の個数: 120

約数和(自身を含む): 818893152

約数和(自身を除く): 561593412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 71, 81, 90, 108, 135, 142, 162, 180, 213, 270, 284, 324, 355, 405, 426, 540, 639, 710, 810, 852, 1065, 1278, 1420, 1620, 1917, 2130, 2237, 2556, 3195, 3834, 4260, 4474, 5751, 6390, 6711, 7668, 8948, 9585, 11185, 11502, 12780, 13422, 19170, 20133, 22370, 23004, 26844, 28755, 33555, 38340, 40266, 44740, 57510, 60399, 67110, 80532, 100665, 115020, 120798, 134220, 158827, 181197, 201330, 241596, 301995, 317654, 362394, 402660, 476481, 603990, 635308, 724788, 794135, 905985, 952962, 1207980, 1429443, 1588270, 1811970, 1905924, 2382405, 2858886, 3176540, 3623940, 4288329, 4764810, 5717772, 7147215, 8576658, 9529620, 12864987, 14294430, 17153316, 21441645, 25729974, 28588860, 42883290, 51459948, 64324935, 85766580, 128649870, 257299740]

約数ペア:

[(1, 257299740), (2, 128649870), (3, 85766580), (4, 64324935), (5, 51459948), (6, 42883290), (9, 28588860), (10, 25729974), (12, 21441645), (15, 17153316), (18, 14294430), (20, 12864987), (27, 9529620), (30, 8576658), (36, 7147215), (45, 5717772), (54, 4764810), (60, 4288329), (71, 3623940), (81, 3176540), (90, 2858886), (108, 2382405), (135, 1905924), (142, 1811970), (162, 1588270), (180, 1429443), (213, 1207980), (270, 952962), (284, 905985), (324, 794135), (355, 724788), (405, 635308), (426, 603990), (540, 476481), (639, 402660), (710, 362394), (810, 317654), (852, 301995), (1065, 241596), (1278, 201330), (1420, 181197), (1620, 158827), (1917, 134220), (2130, 120798), (2237, 115020), (2556, 100665), (3195, 80532), (3834, 67110), (4260, 60399), (4474, 57510), (5751, 44740), (6390, 40266), (6711, 38340), (7668, 33555), (8948, 28755), (9585, 26844), (11185, 23004), (11502, 22370), (12780, 20133), (13422, 19170)]