9987440

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{953}}^1$

素因数の和:1097

約数の個数: 40

約数和(自身を含む): 23422608

約数和(自身を除く): 13435168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 953, 1048, 1310, 1906, 2096, 2620, 3812, 4765, 5240, 7624, 9530, 10480, 15248, 19060, 38120, 76240, 124843, 249686, 499372, 624215, 998744, 1248430, 1997488, 2496860, 4993720, 9987440]

約数ペア:

[(1, 9987440), (2, 4993720), (4, 2496860), (5, 1997488), (8, 1248430), (10, 998744), (16, 624215), (20, 499372), (40, 249686), (80, 124843), (131, 76240), (262, 38120), (524, 19060), (655, 15248), (953, 10480), (1048, 9530), (1310, 7624), (1906, 5240), (2096, 4765), (2620, 3812)]