81128540

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{349}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 174636000

約数和(自身を除く): 93507460

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 197, 236, 295, 349, 394, 590, 698, 788, 985, 1180, 1396, 1745, 1970, 3490, 3940, 6980, 11623, 20591, 23246, 41182, 46492, 58115, 68753, 82364, 102955, 116230, 137506, 205910, 232460, 275012, 343765, 411820, 687530, 1375060, 4056427, 8112854, 16225708, 20282135, 40564270, 81128540]

約数ペア:

[(1, 81128540), (2, 40564270), (4, 20282135), (5, 16225708), (10, 8112854), (20, 4056427), (59, 1375060), (118, 687530), (197, 411820), (236, 343765), (295, 275012), (349, 232460), (394, 205910), (590, 137506), (698, 116230), (788, 102955), (985, 82364), (1180, 68753), (1396, 58115), (1745, 46492), (1970, 41182), (3490, 23246), (3940, 20591), (6980, 11623)]