19485700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1153}}^1$

素因数の和:1193

約数の個数: 54

約数和(自身を含む): 45826494

約数和(自身を除く): 26340794

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1153, 1300, 1690, 2306, 3380, 4225, 4612, 5765, 8450, 11530, 14989, 16900, 23060, 28825, 29978, 57650, 59956, 74945, 115300, 149890, 194857, 299780, 374725, 389714, 749450, 779428, 974285, 1498900, 1948570, 3897140, 4871425, 9742850, 19485700]

約数ペア:

[(1, 19485700), (2, 9742850), (4, 4871425), (5, 3897140), (10, 1948570), (13, 1498900), (20, 974285), (25, 779428), (26, 749450), (50, 389714), (52, 374725), (65, 299780), (100, 194857), (130, 149890), (169, 115300), (260, 74945), (325, 59956), (338, 57650), (650, 29978), (676, 28825), (845, 23060), (1153, 16900), (1300, 14989), (1690, 11530), (2306, 8450), (3380, 5765), (4225, 4612)]