1245678

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 3064320

約数和(自身を除く): 1818642

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 49, 57, 98, 114, 133, 147, 223, 266, 294, 399, 446, 669, 798, 931, 1338, 1561, 1862, 2793, 3122, 4237, 4683, 5586, 8474, 9366, 10927, 12711, 21854, 25422, 29659, 32781, 59318, 65562, 88977, 177954, 207613, 415226, 622839, 1245678]

約数ペア:

[(1, 1245678), (2, 622839), (3, 415226), (6, 207613), (7, 177954), (14, 88977), (19, 65562), (21, 59318), (38, 32781), (42, 29659), (49, 25422), (57, 21854), (98, 12711), (114, 10927), (133, 9366), (147, 8474), (223, 5586), (266, 4683), (294, 4237), (399, 3122), (446, 2793), (669, 1862), (798, 1561), (931, 1338)]