646443520

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{10979}}^1$

素因数の和:11025

約数の個数: 80

約数和(自身を含む): 1617485760

約数和(自身を除く): 971042240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 736, 920, 1280, 1472, 1840, 2560, 2944, 3680, 5888, 7360, 10979, 11776, 14720, 21958, 29440, 43916, 54895, 58880, 87832, 109790, 175664, 219580, 252517, 351328, 439160, 505034, 702656, 878320, 1010068, 1262585, 1405312, 1756640, 2020136, 2525170, 2810624, 3513280, 4040272, 5050340, 5621248, 7026560, 8080544, 10100680, 14053120, 16161088, 20201360, 28106240, 32322176, 40402720, 64644352, 80805440, 129288704, 161610880, 323221760, 646443520]

約数ペア:

[(1, 646443520), (2, 323221760), (4, 161610880), (5, 129288704), (8, 80805440), (10, 64644352), (16, 40402720), (20, 32322176), (23, 28106240), (32, 20201360), (40, 16161088), (46, 14053120), (64, 10100680), (80, 8080544), (92, 7026560), (115, 5621248), (128, 5050340), (160, 4040272), (184, 3513280), (230, 2810624), (256, 2525170), (320, 2020136), (368, 1756640), (460, 1405312), (512, 1262585), (640, 1010068), (736, 878320), (920, 702656), (1280, 505034), (1472, 439160), (1840, 351328), (2560, 252517), (2944, 219580), (3680, 175664), (5888, 109790), (7360, 87832), (10979, 58880), (11776, 54895), (14720, 43916), (21958, 29440)]