28897160

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1297}}^1$

素因数の和:1865

約数の個数: 32

約数和(自身を含む): 65185560

約数和(自身を除く): 36288400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 1297, 2228, 2594, 2785, 4456, 5188, 5570, 6485, 10376, 11140, 12970, 22280, 25940, 51880, 722429, 1444858, 2889716, 3612145, 5779432, 7224290, 14448580, 28897160]

約数ペア:

[(1, 28897160), (2, 14448580), (4, 7224290), (5, 5779432), (8, 3612145), (10, 2889716), (20, 1444858), (40, 722429), (557, 51880), (1114, 25940), (1297, 22280), (2228, 12970), (2594, 11140), (2785, 10376), (4456, 6485), (5188, 5570)]