28267760

素因数分解:

$2^4\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1543}}^1$

素因数の和:1785

約数の個数: 40

約数和(自身を含む): 66052320

約数和(自身を除く): 37784560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229, 458, 916, 1145, 1543, 1832, 2290, 3086, 3664, 4580, 6172, 7715, 9160, 12344, 15430, 18320, 24688, 30860, 61720, 123440, 353347, 706694, 1413388, 1766735, 2826776, 3533470, 5653552, 7066940, 14133880, 28267760]

約数ペア:

[(1, 28267760), (2, 14133880), (4, 7066940), (5, 5653552), (8, 3533470), (10, 2826776), (16, 1766735), (20, 1413388), (40, 706694), (80, 353347), (229, 123440), (458, 61720), (916, 30860), (1145, 24688), (1543, 18320), (1832, 15430), (2290, 12344), (3086, 9160), (3664, 7715), (4580, 6172)]