840494193

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{79}}^2$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 1452717504

約数和(自身を除く): 612223311

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 79, 121, 159, 231, 237, 363, 371, 553, 583, 847, 869, 1113, 1659, 1749, 2541, 2607, 4081, 4187, 6083, 6241, 6413, 9559, 12243, 12561, 18249, 18723, 19239, 28677, 29309, 43687, 44891, 46057, 66913, 68651, 87927, 131061, 134673, 138171, 200739, 205953, 322399, 330773, 480557, 506627, 755161, 967197, 992319, 1441671, 1519881, 2265483, 2315411, 3546389, 3638503, 5286127, 6946233, 10639167, 10915509, 15858381, 25469521, 40023533, 76408563, 120070599, 280164731, 840494193]

約数ペア:

[(1, 840494193), (3, 280164731), (7, 120070599), (11, 76408563), (21, 40023533), (33, 25469521), (53, 15858381), (77, 10915509), (79, 10639167), (121, 6946233), (159, 5286127), (231, 3638503), (237, 3546389), (363, 2315411), (371, 2265483), (553, 1519881), (583, 1441671), (847, 992319), (869, 967197), (1113, 755161), (1659, 506627), (1749, 480557), (2541, 330773), (2607, 322399), (4081, 205953), (4187, 200739), (6083, 138171), (6241, 134673), (6413, 131061), (9559, 87927), (12243, 68651), (12561, 66913), (18249, 46057), (18723, 44891), (19239, 43687), (28677, 29309)]