20305890

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:126

約数の個数: 160

約数和(自身を含む): 62099136

約数和(自身を除く): 41793246

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 43, 45, 53, 54, 55, 66, 81, 86, 90, 99, 106, 110, 129, 135, 159, 162, 165, 198, 215, 258, 265, 270, 297, 318, 330, 387, 405, 430, 473, 477, 495, 530, 583, 594, 645, 774, 795, 810, 891, 946, 954, 990, 1161, 1166, 1290, 1419, 1431, 1485, 1590, 1749, 1782, 1935, 2279, 2322, 2365, 2385, 2838, 2862, 2915, 2970, 3483, 3498, 3870, 4257, 4293, 4455, 4558, 4730, 4770, 5247, 5805, 5830, 6837, 6966, 7095, 7155, 8514, 8586, 8745, 8910, 10494, 11395, 11610, 12771, 13674, 14190, 14310, 15741, 17415, 17490, 20511, 21285, 21465, 22790, 25069, 25542, 26235, 31482, 34185, 34830, 38313, 41022, 42570, 42930, 47223, 50138, 52470, 61533, 63855, 68370, 75207, 76626, 78705, 94446, 102555, 123066, 125345, 127710, 150414, 157410, 184599, 191565, 205110, 225621, 236115, 250690, 307665, 369198, 376035, 383130, 451242, 472230, 615330, 676863, 752070, 922995, 1128105, 1353726, 1845990, 2030589, 2256210, 3384315, 4061178, 6768630, 10152945, 20305890]

約数ペア:

[(1, 20305890), (2, 10152945), (3, 6768630), (5, 4061178), (6, 3384315), (9, 2256210), (10, 2030589), (11, 1845990), (15, 1353726), (18, 1128105), (22, 922995), (27, 752070), (30, 676863), (33, 615330), (43, 472230), (45, 451242), (53, 383130), (54, 376035), (55, 369198), (66, 307665), (81, 250690), (86, 236115), (90, 225621), (99, 205110), (106, 191565), (110, 184599), (129, 157410), (135, 150414), (159, 127710), (162, 125345), (165, 123066), (198, 102555), (215, 94446), (258, 78705), (265, 76626), (270, 75207), (297, 68370), (318, 63855), (330, 61533), (387, 52470), (405, 50138), (430, 47223), (473, 42930), (477, 42570), (495, 41022), (530, 38313), (583, 34830), (594, 34185), (645, 31482), (774, 26235), (795, 25542), (810, 25069), (891, 22790), (946, 21465), (954, 21285), (990, 20511), (1161, 17490), (1166, 17415), (1290, 15741), (1419, 14310), (1431, 14190), (1485, 13674), (1590, 12771), (1749, 11610), (1782, 11395), (1935, 10494), (2279, 8910), (2322, 8745), (2365, 8586), (2385, 8514), (2838, 7155), (2862, 7095), (2915, 6966), (2970, 6837), (3483, 5830), (3498, 5805), (3870, 5247), (4257, 4770), (4293, 4730), (4455, 4558)]