1808976640

素因数分解:

$2^8\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13721}}^1$

素因数の和:13845

約数の個数: 72

約数和(自身を含む): 4375451808

約数和(自身を除く): 2566475168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 412, 515, 640, 824, 1030, 1280, 1648, 2060, 3296, 4120, 6592, 8240, 13184, 13721, 16480, 26368, 27442, 32960, 54884, 65920, 68605, 109768, 131840, 137210, 219536, 274420, 439072, 548840, 878144, 1097680, 1413263, 1756288, 2195360, 2826526, 3512576, 4390720, 5653052, 7066315, 8781440, 11306104, 14132630, 17562880, 22612208, 28265260, 45224416, 56530520, 90448832, 113061040, 180897664, 226122080, 361795328, 452244160, 904488320, 1808976640]

約数ペア:

[(1, 1808976640), (2, 904488320), (4, 452244160), (5, 361795328), (8, 226122080), (10, 180897664), (16, 113061040), (20, 90448832), (32, 56530520), (40, 45224416), (64, 28265260), (80, 22612208), (103, 17562880), (128, 14132630), (160, 11306104), (206, 8781440), (256, 7066315), (320, 5653052), (412, 4390720), (515, 3512576), (640, 2826526), (824, 2195360), (1030, 1756288), (1280, 1413263), (1648, 1097680), (2060, 878144), (3296, 548840), (4120, 439072), (6592, 274420), (8240, 219536), (13184, 137210), (13721, 131840), (16480, 109768), (26368, 68605), (27442, 65920), (32960, 54884)]