19048820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1321}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 46195968

約数和(自身を除く): 27147148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1321, 1442, 2060, 2642, 2884, 3605, 5284, 6605, 7210, 9247, 13210, 14420, 18494, 26420, 36988, 46235, 92470, 136063, 184940, 272126, 544252, 680315, 952441, 1360630, 1904882, 2721260, 3809764, 4762205, 9524410, 19048820]

約数ペア:

[(1, 19048820), (2, 9524410), (4, 4762205), (5, 3809764), (7, 2721260), (10, 1904882), (14, 1360630), (20, 952441), (28, 680315), (35, 544252), (70, 272126), (103, 184940), (140, 136063), (206, 92470), (412, 46235), (515, 36988), (721, 26420), (1030, 18494), (1321, 14420), (1442, 13210), (2060, 9247), (2642, 7210), (2884, 6605), (3605, 5284)]