20153304880

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{10069}}^1$

素因数の和:10406

約数の個数: 80

約数和(自身を含む): 47469818880

約数和(自身を除く): 27316514000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 197, 254, 394, 508, 635, 788, 985, 1016, 1270, 1576, 1970, 2032, 2540, 3152, 3940, 5080, 7880, 10069, 10160, 15760, 20138, 25019, 40276, 50038, 50345, 80552, 100076, 100690, 125095, 161104, 200152, 201380, 250190, 400304, 402760, 500380, 805520, 1000760, 1278763, 1983593, 2001520, 2557526, 3967186, 5115052, 6393815, 7934372, 9917965, 10230104, 12787630, 15868744, 19835930, 20460208, 25575260, 31737488, 39671860, 51150520, 79343720, 102301040, 158687440, 251916311, 503832622, 1007665244, 1259581555, 2015330488, 2519163110, 4030660976, 5038326220, 10076652440, 20153304880]

約数ペア:

[(1, 20153304880), (2, 10076652440), (4, 5038326220), (5, 4030660976), (8, 2519163110), (10, 2015330488), (16, 1259581555), (20, 1007665244), (40, 503832622), (80, 251916311), (127, 158687440), (197, 102301040), (254, 79343720), (394, 51150520), (508, 39671860), (635, 31737488), (788, 25575260), (985, 20460208), (1016, 19835930), (1270, 15868744), (1576, 12787630), (1970, 10230104), (2032, 9917965), (2540, 7934372), (3152, 6393815), (3940, 5115052), (5080, 3967186), (7880, 2557526), (10069, 2001520), (10160, 1983593), (15760, 1278763), (20138, 1000760), (25019, 805520), (40276, 500380), (50038, 402760), (50345, 400304), (80552, 250190), (100076, 201380), (100690, 200152), (125095, 161104)]