131337280

素因数分解:

$2^6\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1597}}^1$

素因数の和:1871

約数の個数: 56

約数和(自身を含む): 314160408

約数和(自身を除く): 182823128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 257, 320, 514, 1028, 1285, 1597, 2056, 2570, 3194, 4112, 5140, 6388, 7985, 8224, 10280, 12776, 15970, 16448, 20560, 25552, 31940, 41120, 51104, 63880, 82240, 102208, 127760, 255520, 410429, 511040, 820858, 1641716, 2052145, 3283432, 4104290, 6566864, 8208580, 13133728, 16417160, 26267456, 32834320, 65668640, 131337280]

約数ペア:

[(1, 131337280), (2, 65668640), (4, 32834320), (5, 26267456), (8, 16417160), (10, 13133728), (16, 8208580), (20, 6566864), (32, 4104290), (40, 3283432), (64, 2052145), (80, 1641716), (160, 820858), (257, 511040), (320, 410429), (514, 255520), (1028, 127760), (1285, 102208), (1597, 82240), (2056, 63880), (2570, 51104), (3194, 41120), (4112, 31940), (5140, 25552), (6388, 20560), (7985, 16448), (8224, 15970), (10280, 12776)]