20154711460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{9151}}^1$

素因数の和:9413

約数の個数: 96

約数和(自身を含む): 46882547712

約数和(自身を除く): 26727836252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 197, 215, 260, 394, 430, 559, 788, 860, 985, 1118, 1970, 2236, 2561, 2795, 3940, 5122, 5590, 8471, 9151, 10244, 11180, 12805, 16942, 18302, 25610, 33884, 36604, 42355, 45755, 51220, 84710, 91510, 110123, 118963, 169420, 183020, 220246, 237926, 393493, 440492, 475852, 550615, 594815, 786986, 1101230, 1189630, 1573972, 1802747, 1967465, 2202460, 2379260, 3605494, 3934930, 5115409, 7210988, 7869860, 9013735, 10230818, 18027470, 20461636, 23435711, 25577045, 36054940, 46871422, 51154090, 77518121, 93742844, 102308180, 117178555, 155036242, 234357110, 310072484, 387590605, 468714220, 775181210, 1007735573, 1550362420, 2015471146, 4030942292, 5038677865, 10077355730, 20154711460]

約数ペア:

[(1, 20154711460), (2, 10077355730), (4, 5038677865), (5, 4030942292), (10, 2015471146), (13, 1550362420), (20, 1007735573), (26, 775181210), (43, 468714220), (52, 387590605), (65, 310072484), (86, 234357110), (130, 155036242), (172, 117178555), (197, 102308180), (215, 93742844), (260, 77518121), (394, 51154090), (430, 46871422), (559, 36054940), (788, 25577045), (860, 23435711), (985, 20461636), (1118, 18027470), (1970, 10230818), (2236, 9013735), (2561, 7869860), (2795, 7210988), (3940, 5115409), (5122, 3934930), (5590, 3605494), (8471, 2379260), (9151, 2202460), (10244, 1967465), (11180, 1802747), (12805, 1573972), (16942, 1189630), (18302, 1101230), (25610, 786986), (33884, 594815), (36604, 550615), (42355, 475852), (45755, 440492), (51220, 393493), (84710, 237926), (91510, 220246), (110123, 183020), (118963, 169420)]