205988720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4133}}^1$

素因数の和:4242

約数の個数: 80

約数和(自身を含む): 553625280

約数和(自身を除く): 347636560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1780, 2492, 3115, 3560, 4133, 4984, 6230, 7120, 8266, 9968, 12460, 16532, 20665, 24920, 28931, 33064, 41330, 49840, 57862, 66128, 82660, 115724, 144655, 165320, 231448, 289310, 330640, 367837, 462896, 578620, 735674, 1157240, 1471348, 1839185, 2314480, 2574859, 2942696, 3678370, 5149718, 5885392, 7356740, 10299436, 12874295, 14713480, 20598872, 25748590, 29426960, 41197744, 51497180, 102994360, 205988720]

約数ペア:

[(1, 205988720), (2, 102994360), (4, 51497180), (5, 41197744), (7, 29426960), (8, 25748590), (10, 20598872), (14, 14713480), (16, 12874295), (20, 10299436), (28, 7356740), (35, 5885392), (40, 5149718), (56, 3678370), (70, 2942696), (80, 2574859), (89, 2314480), (112, 1839185), (140, 1471348), (178, 1157240), (280, 735674), (356, 578620), (445, 462896), (560, 367837), (623, 330640), (712, 289310), (890, 231448), (1246, 165320), (1424, 144655), (1780, 115724), (2492, 82660), (3115, 66128), (3560, 57862), (4133, 49840), (4984, 41330), (6230, 33064), (7120, 28931), (8266, 24920), (9968, 20665), (12460, 16532)]