78320320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 112

約数和(自身を含む): 204569568

約数和(自身を除く): 126249248

約数列:

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

約数ペア:

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