20254806

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 54996480

約数和(自身を除く): 34741674

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 27, 33, 39, 43, 54, 61, 66, 78, 86, 99, 117, 122, 129, 143, 183, 198, 234, 258, 286, 297, 351, 366, 387, 429, 473, 549, 559, 594, 671, 702, 774, 793, 858, 946, 1098, 1118, 1161, 1287, 1342, 1419, 1586, 1647, 1677, 2013, 2322, 2379, 2574, 2623, 2838, 3294, 3354, 3861, 4026, 4257, 4758, 5031, 5246, 6039, 6149, 7137, 7722, 7869, 8514, 8723, 10062, 12078, 12298, 12771, 14274, 15093, 15738, 17446, 18117, 18447, 21411, 23607, 25542, 26169, 28853, 30186, 34099, 36234, 36894, 42822, 47214, 52338, 55341, 57706, 68198, 70821, 78507, 86559, 102297, 110682, 141642, 157014, 166023, 173118, 204594, 235521, 259677, 306891, 332046, 375089, 471042, 519354, 613782, 750178, 779031, 920673, 1125267, 1558062, 1841346, 2250534, 3375801, 6751602, 10127403, 20254806]

約数ペア:

[(1, 20254806), (2, 10127403), (3, 6751602), (6, 3375801), (9, 2250534), (11, 1841346), (13, 1558062), (18, 1125267), (22, 920673), (26, 779031), (27, 750178), (33, 613782), (39, 519354), (43, 471042), (54, 375089), (61, 332046), (66, 306891), (78, 259677), (86, 235521), (99, 204594), (117, 173118), (122, 166023), (129, 157014), (143, 141642), (183, 110682), (198, 102297), (234, 86559), (258, 78507), (286, 70821), (297, 68198), (351, 57706), (366, 55341), (387, 52338), (429, 47214), (473, 42822), (549, 36894), (559, 36234), (594, 34099), (671, 30186), (702, 28853), (774, 26169), (793, 25542), (858, 23607), (946, 21411), (1098, 18447), (1118, 18117), (1161, 17446), (1287, 15738), (1342, 15093), (1419, 14274), (1586, 12771), (1647, 12298), (1677, 12078), (2013, 10062), (2322, 8723), (2379, 8514), (2574, 7869), (2623, 7722), (2838, 7137), (3294, 6149), (3354, 6039), (3861, 5246), (4026, 5031), (4257, 4758)]