20161461650

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{263}}^1\times {\mathrm{12671}}^1$

素因数の和:12968

約数の個数: 72

約数和(自身を含む): 41379351552

約数和(自身を除く): 21217889902

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 263, 275, 526, 550, 605, 1210, 1315, 2630, 2893, 3025, 5786, 6050, 6575, 12671, 13150, 14465, 25342, 28930, 31823, 63355, 63646, 72325, 126710, 139381, 144650, 159115, 278762, 316775, 318230, 633550, 696905, 795575, 1393810, 1533191, 1591150, 3066382, 3332473, 3484525, 6664946, 6969050, 7665955, 15331910, 16662365, 33324730, 36657203, 38329775, 73314406, 76659550, 83311825, 166623650, 183286015, 366572030, 403229233, 806458466, 916430075, 1832860150, 2016146165, 4032292330, 10080730825, 20161461650]

約数ペア:

[(1, 20161461650), (2, 10080730825), (5, 4032292330), (10, 2016146165), (11, 1832860150), (22, 916430075), (25, 806458466), (50, 403229233), (55, 366572030), (110, 183286015), (121, 166623650), (242, 83311825), (263, 76659550), (275, 73314406), (526, 38329775), (550, 36657203), (605, 33324730), (1210, 16662365), (1315, 15331910), (2630, 7665955), (2893, 6969050), (3025, 6664946), (5786, 3484525), (6050, 3332473), (6575, 3066382), (12671, 1591150), (13150, 1533191), (14465, 1393810), (25342, 795575), (28930, 696905), (31823, 633550), (63355, 318230), (63646, 316775), (72325, 278762), (126710, 159115), (139381, 144650)]