979900

素因数分解:

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

素因数の和:294

約数の個数: 36

約数和(自身を含む): 2187360

約数和(自身を除く): 1207460

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 239, 410, 478, 820, 956, 1025, 1195, 2050, 2390, 4100, 4780, 5975, 9799, 11950, 19598, 23900, 39196, 48995, 97990, 195980, 244975, 489950, 979900]

約数ペア:

[(1, 979900), (2, 489950), (4, 244975), (5, 195980), (10, 97990), (20, 48995), (25, 39196), (41, 23900), (50, 19598), (82, 11950), (100, 9799), (164, 5975), (205, 4780), (239, 4100), (410, 2390), (478, 2050), (820, 1195), (956, 1025)]