18099440

素因数分解:

$2^4\times 5^1\times {\mathrm{233}}^1\times {\mathrm{971}}^1$

素因数の和:1217

約数の個数: 40

約数和(自身を含む): 42305328

約数和(自身を除く): 24205888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233, 466, 932, 971, 1165, 1864, 1942, 2330, 3728, 3884, 4660, 4855, 7768, 9320, 9710, 15536, 18640, 19420, 38840, 77680, 226243, 452486, 904972, 1131215, 1809944, 2262430, 3619888, 4524860, 9049720, 18099440]

約数ペア:

[(1, 18099440), (2, 9049720), (4, 4524860), (5, 3619888), (8, 2262430), (10, 1809944), (16, 1131215), (20, 904972), (40, 452486), (80, 226243), (233, 77680), (466, 38840), (932, 19420), (971, 18640), (1165, 15536), (1864, 9710), (1942, 9320), (2330, 7768), (3728, 4855), (3884, 4660)]