16220940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{661}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 45598560

約数和(自身を除く): 29377620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 661, 818, 1227, 1322, 1636, 1983, 2045, 2454, 2644, 3305, 3966, 4090, 4908, 6135, 6610, 7932, 8180, 9915, 12270, 13220, 19830, 24540, 39660, 270349, 540698, 811047, 1081396, 1351745, 1622094, 2703490, 3244188, 4055235, 5406980, 8110470, 16220940]

約数ペア:

[(1, 16220940), (2, 8110470), (3, 5406980), (4, 4055235), (5, 3244188), (6, 2703490), (10, 1622094), (12, 1351745), (15, 1081396), (20, 811047), (30, 540698), (60, 270349), (409, 39660), (661, 24540), (818, 19830), (1227, 13220), (1322, 12270), (1636, 9915), (1983, 8180), (2045, 7932), (2454, 6610), (2644, 6135), (3305, 4908), (3966, 4090)]