16620940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{523}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 40142592

約数和(自身を除く): 23521652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 227, 454, 523, 908, 1046, 1135, 1589, 2092, 2270, 2615, 3178, 3661, 4540, 5230, 6356, 7322, 7945, 10460, 14644, 15890, 18305, 31780, 36610, 73220, 118721, 237442, 474884, 593605, 831047, 1187210, 1662094, 2374420, 3324188, 4155235, 8310470, 16620940]

約数ペア:

[(1, 16620940), (2, 8310470), (4, 4155235), (5, 3324188), (7, 2374420), (10, 1662094), (14, 1187210), (20, 831047), (28, 593605), (35, 474884), (70, 237442), (140, 118721), (227, 73220), (454, 36610), (523, 31780), (908, 18305), (1046, 15890), (1135, 14644), (1589, 10460), (2092, 7945), (2270, 7322), (2615, 6356), (3178, 5230), (3661, 4540)]