1640320

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 4296240

約数和(自身を除く): 2655920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 233, 320, 352, 440, 466, 640, 704, 880, 932, 1165, 1408, 1760, 1864, 2330, 2563, 3520, 3728, 4660, 5126, 7040, 7456, 9320, 10252, 12815, 14912, 18640, 20504, 25630, 29824, 37280, 41008, 51260, 74560, 82016, 102520, 149120, 164032, 205040, 328064, 410080, 820160, 1640320]

約数ペア:

[(1, 1640320), (2, 820160), (4, 410080), (5, 328064), (8, 205040), (10, 164032), (11, 149120), (16, 102520), (20, 82016), (22, 74560), (32, 51260), (40, 41008), (44, 37280), (55, 29824), (64, 25630), (80, 20504), (88, 18640), (110, 14912), (128, 12815), (160, 10252), (176, 9320), (220, 7456), (233, 7040), (320, 5126), (352, 4660), (440, 3728), (466, 3520), (640, 2563), (704, 2330), (880, 1864), (932, 1760), (1165, 1408)]