20550080

素因数分解:

$2^6\times 5^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1$

素因数の和:597

約数の個数: 56

約数和(自身を含む): 49377600

約数和(自身を除く): 28827520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 149, 160, 298, 320, 431, 596, 745, 862, 1192, 1490, 1724, 2155, 2384, 2980, 3448, 4310, 4768, 5960, 6896, 8620, 9536, 11920, 13792, 17240, 23840, 27584, 34480, 47680, 64219, 68960, 128438, 137920, 256876, 321095, 513752, 642190, 1027504, 1284380, 2055008, 2568760, 4110016, 5137520, 10275040, 20550080]

約数ペア:

[(1, 20550080), (2, 10275040), (4, 5137520), (5, 4110016), (8, 2568760), (10, 2055008), (16, 1284380), (20, 1027504), (32, 642190), (40, 513752), (64, 321095), (80, 256876), (149, 137920), (160, 128438), (298, 68960), (320, 64219), (431, 47680), (596, 34480), (745, 27584), (862, 23840), (1192, 17240), (1490, 13792), (1724, 11920), (2155, 9536), (2384, 8620), (2980, 6896), (3448, 5960), (4310, 4768)]