289940720

素因数分解:

$2^4\times 5^1\times {\mathrm{953}}^1\times {\mathrm{3803}}^1$

素因数の和:4769

約数の個数: 40

約数和(自身を含む): 674996976

約数和(自身を除く): 385056256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 953, 1906, 3803, 3812, 4765, 7606, 7624, 9530, 15212, 15248, 19015, 19060, 30424, 38030, 38120, 60848, 76060, 76240, 152120, 304240, 3624259, 7248518, 14497036, 18121295, 28994072, 36242590, 57988144, 72485180, 144970360, 289940720]

約数ペア:

[(1, 289940720), (2, 144970360), (4, 72485180), (5, 57988144), (8, 36242590), (10, 28994072), (16, 18121295), (20, 14497036), (40, 7248518), (80, 3624259), (953, 304240), (1906, 152120), (3803, 76240), (3812, 76060), (4765, 60848), (7606, 38120), (7624, 38030), (9530, 30424), (15212, 19060), (15248, 19015)]