19702700

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{2699}}^1$

素因数の和:2786

約数の個数: 36

約数和(自身を含む): 43356600

約数和(自身を除く): 23653900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 146, 292, 365, 730, 1460, 1825, 2699, 3650, 5398, 7300, 10796, 13495, 26990, 53980, 67475, 134950, 197027, 269900, 394054, 788108, 985135, 1970270, 3940540, 4925675, 9851350, 19702700]

約数ペア:

[(1, 19702700), (2, 9851350), (4, 4925675), (5, 3940540), (10, 1970270), (20, 985135), (25, 788108), (50, 394054), (73, 269900), (100, 197027), (146, 134950), (292, 67475), (365, 53980), (730, 26990), (1460, 13495), (1825, 10796), (2699, 7300), (3650, 5398)]