664045720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1277011}}^1$

素因数の和:1277035

約数の個数: 32

約数和(自身を含む): 1609035120

約数和(自身を除く): 944989400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1277011, 2554022, 5108044, 6385055, 10216088, 12770110, 16601143, 25540220, 33202286, 51080440, 66404572, 83005715, 132809144, 166011430, 332022860, 664045720]

約数ペア:

[(1, 664045720), (2, 332022860), (4, 166011430), (5, 132809144), (8, 83005715), (10, 66404572), (13, 51080440), (20, 33202286), (26, 25540220), (40, 16601143), (52, 12770110), (65, 10216088), (104, 6385055), (130, 5108044), (260, 2554022), (520, 1277011)]