221440720

素因数分解:

$2^4\times 5^1\times {\mathrm{503}}^1\times {\mathrm{5503}}^1$

素因数の和:6019

約数の個数: 40

約数和(自身を含む): 515966976

約数和(自身を除く): 294526256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503, 1006, 2012, 2515, 4024, 5030, 5503, 8048, 10060, 11006, 20120, 22012, 27515, 40240, 44024, 55030, 88048, 110060, 220120, 440240, 2768009, 5536018, 11072036, 13840045, 22144072, 27680090, 44288144, 55360180, 110720360, 221440720]

約数ペア:

[(1, 221440720), (2, 110720360), (4, 55360180), (5, 44288144), (8, 27680090), (10, 22144072), (16, 13840045), (20, 11072036), (40, 5536018), (80, 2768009), (503, 440240), (1006, 220120), (2012, 110060), (2515, 88048), (4024, 55030), (5030, 44024), (5503, 40240), (8048, 27515), (10060, 22012), (11006, 20120)]