774280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1489}}^1$

素因数の和:1513

約数の個数: 32

約数和(自身を含む): 1877400

約数和(自身を除く): 1103120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1489, 2978, 5956, 7445, 11912, 14890, 19357, 29780, 38714, 59560, 77428, 96785, 154856, 193570, 387140, 774280]

約数ペア:

[(1, 774280), (2, 387140), (4, 193570), (5, 154856), (8, 96785), (10, 77428), (13, 59560), (20, 38714), (26, 29780), (40, 19357), (52, 14890), (65, 11912), (104, 7445), (130, 5956), (260, 2978), (520, 1489)]