78690340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1\times {\mathrm{643}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 172025280

約数和(自身を除く): 93334940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 211, 290, 422, 580, 643, 844, 1055, 1286, 2110, 2572, 3215, 4220, 6119, 6430, 12238, 12860, 18647, 24476, 30595, 37294, 61190, 74588, 93235, 122380, 135673, 186470, 271346, 372940, 542692, 678365, 1356730, 2713460, 3934517, 7869034, 15738068, 19672585, 39345170, 78690340]

約数ペア:

[(1, 78690340), (2, 39345170), (4, 19672585), (5, 15738068), (10, 7869034), (20, 3934517), (29, 2713460), (58, 1356730), (116, 678365), (145, 542692), (211, 372940), (290, 271346), (422, 186470), (580, 135673), (643, 122380), (844, 93235), (1055, 74588), (1286, 61190), (2110, 37294), (2572, 30595), (3215, 24476), (4220, 18647), (6119, 12860), (6430, 12238)]