20804513485

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{151}}^1\times {\mathrm{2129}}^1$

素因数の和:2378

約数の個数: 48

約数和(自身を含む): 29418128640

約数和(自身を除く): 8613615155

約数列:

[1, 5, 7, 35, 43, 151, 215, 301, 755, 1057, 1505, 1849, 2129, 5285, 6493, 9245, 10645, 12943, 14903, 32465, 45451, 64715, 74515, 91547, 227255, 279199, 321479, 457735, 640829, 1395995, 1607395, 1954393, 2250353, 3204145, 3936521, 9771965, 11251765, 13823597, 19682605, 27555647, 69117985, 96765179, 137778235, 483825895, 594414671, 2972073355, 4160902697, 20804513485]

約数ペア:

[(1, 20804513485), (5, 4160902697), (7, 2972073355), (35, 594414671), (43, 483825895), (151, 137778235), (215, 96765179), (301, 69117985), (755, 27555647), (1057, 19682605), (1505, 13823597), (1849, 11251765), (2129, 9771965), (5285, 3936521), (6493, 3204145), (9245, 2250353), (10645, 1954393), (12943, 1607395), (14903, 1395995), (32465, 640829), (45451, 457735), (64715, 321479), (74515, 279199), (91547, 227255)]