641812320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{445703}}^1$

素因数の和:445724

約数の個数: 72

約数和(自身を含む): 2190189456

約数和(自身を除く): 1548377136

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 445703, 891406, 1337109, 1782812, 2228515, 2674218, 3565624, 4011327, 4457030, 5348436, 6685545, 7131248, 8022654, 8914060, 10696872, 13371090, 14262496, 16045308, 17828120, 20056635, 21393744, 26742180, 32090616, 35656240, 40113270, 42787488, 53484360, 64181232, 71312480, 80226540, 106968720, 128362464, 160453080, 213937440, 320906160, 641812320]

約数ペア:

[(1, 641812320), (2, 320906160), (3, 213937440), (4, 160453080), (5, 128362464), (6, 106968720), (8, 80226540), (9, 71312480), (10, 64181232), (12, 53484360), (15, 42787488), (16, 40113270), (18, 35656240), (20, 32090616), (24, 26742180), (30, 21393744), (32, 20056635), (36, 17828120), (40, 16045308), (45, 14262496), (48, 13371090), (60, 10696872), (72, 8914060), (80, 8022654), (90, 7131248), (96, 6685545), (120, 5348436), (144, 4457030), (160, 4011327), (180, 3565624), (240, 2674218), (288, 2228515), (360, 1782812), (480, 1337109), (720, 891406), (1440, 445703)]