819780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1051}}^1$

素因数の和:1076

約数の個数: 48

約数和(自身を含む): 2474304

約数和(自身を除く): 1654524

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1051, 2102, 3153, 4204, 5255, 6306, 10510, 12612, 13663, 15765, 21020, 27326, 31530, 40989, 54652, 63060, 68315, 81978, 136630, 163956, 204945, 273260, 409890, 819780]

約数ペア:

[(1, 819780), (2, 409890), (3, 273260), (4, 204945), (5, 163956), (6, 136630), (10, 81978), (12, 68315), (13, 63060), (15, 54652), (20, 40989), (26, 31530), (30, 27326), (39, 21020), (52, 15765), (60, 13663), (65, 12612), (78, 10510), (130, 6306), (156, 5255), (195, 4204), (260, 3153), (390, 2102), (780, 1051)]