131654320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{1009}}^1$

素因数の和:1262

約数の個数: 80

約数和(自身を含む): 351673920

約数和(自身を除く): 220019600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 233, 280, 466, 560, 932, 1009, 1165, 1631, 1864, 2018, 2330, 3262, 3728, 4036, 4660, 5045, 6524, 7063, 8072, 8155, 9320, 10090, 13048, 14126, 16144, 16310, 18640, 20180, 26096, 28252, 32620, 35315, 40360, 56504, 65240, 70630, 80720, 113008, 130480, 141260, 235097, 282520, 470194, 565040, 940388, 1175485, 1645679, 1880776, 2350970, 3291358, 3761552, 4701940, 6582716, 8228395, 9403880, 13165432, 16456790, 18807760, 26330864, 32913580, 65827160, 131654320]

約数ペア:

[(1, 131654320), (2, 65827160), (4, 32913580), (5, 26330864), (7, 18807760), (8, 16456790), (10, 13165432), (14, 9403880), (16, 8228395), (20, 6582716), (28, 4701940), (35, 3761552), (40, 3291358), (56, 2350970), (70, 1880776), (80, 1645679), (112, 1175485), (140, 940388), (233, 565040), (280, 470194), (466, 282520), (560, 235097), (932, 141260), (1009, 130480), (1165, 113008), (1631, 80720), (1864, 70630), (2018, 65240), (2330, 56504), (3262, 40360), (3728, 35315), (4036, 32620), (4660, 28252), (5045, 26096), (6524, 20180), (7063, 18640), (8072, 16310), (8155, 16144), (9320, 14126), (10090, 13048)]