965177860

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{1231}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 2049062400

約数和(自身を除く): 1083884540

約数列:

[1, 2, 4, 5, 10, 20, 197, 199, 394, 398, 788, 796, 985, 995, 1231, 1970, 1990, 2462, 3940, 3980, 4924, 6155, 12310, 24620, 39203, 78406, 156812, 196015, 242507, 244969, 392030, 485014, 489938, 784060, 970028, 979876, 1212535, 1224845, 2425070, 2449690, 4850140, 4899380, 48258893, 96517786, 193035572, 241294465, 482588930, 965177860]

約数ペア:

[(1, 965177860), (2, 482588930), (4, 241294465), (5, 193035572), (10, 96517786), (20, 48258893), (197, 4899380), (199, 4850140), (394, 2449690), (398, 2425070), (788, 1224845), (796, 1212535), (985, 979876), (995, 970028), (1231, 784060), (1970, 489938), (1990, 485014), (2462, 392030), (3940, 244969), (3980, 242507), (4924, 196015), (6155, 156812), (12310, 78406), (24620, 39203)]