9896990

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 18506880

約数和(自身を除く): 8609890

約数列:

[1, 2, 5, 10, 41, 82, 101, 202, 205, 239, 410, 478, 505, 1010, 1195, 2390, 4141, 8282, 9799, 19598, 20705, 24139, 41410, 48278, 48995, 97990, 120695, 241390, 989699, 1979398, 4948495, 9896990]

約数ペア:

[(1, 9896990), (2, 4948495), (5, 1979398), (10, 989699), (41, 241390), (82, 120695), (101, 97990), (202, 48995), (205, 48278), (239, 41410), (410, 24139), (478, 20705), (505, 19598), (1010, 9799), (1195, 8282), (2390, 4141)]