2215207880

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{64621}}^1$

素因数の和:65489

約数の個数: 32

約数和(自身を含む): 4990110840

約数和(自身を除く): 2774902960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1714, 3428, 4285, 6856, 8570, 17140, 34280, 64621, 129242, 258484, 323105, 516968, 646210, 1292420, 2584840, 55380197, 110760394, 221520788, 276900985, 443041576, 553801970, 1107603940, 2215207880]

約数ペア:

[(1, 2215207880), (2, 1107603940), (4, 553801970), (5, 443041576), (8, 276900985), (10, 221520788), (20, 110760394), (40, 55380197), (857, 2584840), (1714, 1292420), (3428, 646210), (4285, 516968), (6856, 323105), (8570, 258484), (17140, 129242), (34280, 64621)]