16831780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1103}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 40803840

約数和(自身を除く): 23972060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1103, 1526, 2180, 2206, 3052, 3815, 4412, 5515, 7630, 7721, 11030, 15260, 15442, 22060, 30884, 38605, 77210, 120227, 154420, 240454, 480908, 601135, 841589, 1202270, 1683178, 2404540, 3366356, 4207945, 8415890, 16831780]

約数ペア:

[(1, 16831780), (2, 8415890), (4, 4207945), (5, 3366356), (7, 2404540), (10, 1683178), (14, 1202270), (20, 841589), (28, 601135), (35, 480908), (70, 240454), (109, 154420), (140, 120227), (218, 77210), (436, 38605), (545, 30884), (763, 22060), (1090, 15442), (1103, 15260), (1526, 11030), (2180, 7721), (2206, 7630), (3052, 5515), (3815, 4412)]