156640640

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 128

約数和(自身を含む): 410749920

約数和(自身を除く): 254109280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 128, 130, 134, 160, 208, 260, 268, 281, 320, 335, 416, 520, 536, 562, 640, 670, 832, 871, 1040, 1072, 1124, 1340, 1405, 1664, 1742, 2080, 2144, 2248, 2680, 2810, 3484, 3653, 4160, 4288, 4355, 4496, 5360, 5620, 6968, 7306, 8320, 8576, 8710, 8992, 10720, 11240, 13936, 14612, 17420, 17984, 18265, 18827, 21440, 22480, 27872, 29224, 34840, 35968, 36530, 37654, 42880, 44960, 55744, 58448, 69680, 73060, 75308, 89920, 94135, 111488, 116896, 139360, 146120, 150616, 179840, 188270, 233792, 244751, 278720, 292240, 301232, 376540, 467584, 489502, 557440, 584480, 602464, 753080, 979004, 1168960, 1204928, 1223755, 1506160, 1958008, 2337920, 2409856, 2447510, 3012320, 3916016, 4895020, 6024640, 7832032, 9790040, 12049280, 15664064, 19580080, 31328128, 39160160, 78320320, 156640640]

約数ペア:

[(1, 156640640), (2, 78320320), (4, 39160160), (5, 31328128), (8, 19580080), (10, 15664064), (13, 12049280), (16, 9790040), (20, 7832032), (26, 6024640), (32, 4895020), (40, 3916016), (52, 3012320), (64, 2447510), (65, 2409856), (67, 2337920), (80, 1958008), (104, 1506160), (128, 1223755), (130, 1204928), (134, 1168960), (160, 979004), (208, 753080), (260, 602464), (268, 584480), (281, 557440), (320, 489502), (335, 467584), (416, 376540), (520, 301232), (536, 292240), (562, 278720), (640, 244751), (670, 233792), (832, 188270), (871, 179840), (1040, 150616), (1072, 146120), (1124, 139360), (1340, 116896), (1405, 111488), (1664, 94135), (1742, 89920), (2080, 75308), (2144, 73060), (2248, 69680), (2680, 58448), (2810, 55744), (3484, 44960), (3653, 42880), (4160, 37654), (4288, 36530), (4355, 35968), (4496, 34840), (5360, 29224), (5620, 27872), (6968, 22480), (7306, 21440), (8320, 18827), (8576, 18265), (8710, 17984), (8992, 17420), (10720, 14612), (11240, 13936)]