1902953020

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{311}}^1\times {\mathrm{1553}}^1$

素因数の和:2070

約数の個数: 48

約数和(自身を含む): 4031995968

約数和(自身を除く): 2129042948

約数列:

[1, 2, 4, 5, 10, 20, 197, 311, 394, 622, 788, 985, 1244, 1553, 1555, 1970, 3106, 3110, 3940, 6212, 6220, 7765, 15530, 31060, 61267, 122534, 245068, 305941, 306335, 482983, 611882, 612670, 965966, 1223764, 1225340, 1529705, 1931932, 2414915, 3059410, 4829830, 6118820, 9659660, 95147651, 190295302, 380590604, 475738255, 951476510, 1902953020]

約数ペア:

[(1, 1902953020), (2, 951476510), (4, 475738255), (5, 380590604), (10, 190295302), (20, 95147651), (197, 9659660), (311, 6118820), (394, 4829830), (622, 3059410), (788, 2414915), (985, 1931932), (1244, 1529705), (1553, 1225340), (1555, 1223764), (1970, 965966), (3106, 612670), (3110, 611882), (3940, 482983), (6212, 306335), (6220, 305941), (7765, 245068), (15530, 122534), (31060, 61267)]