20212553608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:599

約数の個数: 128

約数和(自身を含む): 42535342080

約数和(自身を除く): 22322788472

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 73, 104, 106, 146, 191, 212, 263, 292, 382, 424, 526, 584, 689, 764, 949, 1052, 1378, 1528, 1898, 2104, 2483, 2756, 3419, 3796, 3869, 4966, 5512, 6838, 7592, 7738, 9932, 10123, 13676, 13939, 13943, 15476, 19199, 19864, 20246, 27352, 27878, 27886, 30952, 38398, 40492, 50233, 50297, 55756, 55772, 76796, 80984, 100466, 100594, 111512, 111544, 131599, 153592, 181207, 181259, 200932, 201188, 249587, 263198, 362414, 362518, 401864, 402376, 499174, 526396, 653029, 724828, 725036, 738979, 998348, 1017547, 1052792, 1306058, 1449656, 1450072, 1477958, 1996696, 2035094, 2612116, 2662349, 2955916, 3667009, 4070188, 5224232, 5324698, 5911832, 7334018, 8140376, 9606727, 10649396, 13228111, 14668036, 19213454, 21298792, 26456222, 29336072, 34610537, 38426908, 47671117, 52912444, 69221074, 76853816, 95342234, 105824888, 138442148, 190684468, 194351477, 276884296, 381368936, 388702954, 777405908, 1554811816, 2526569201, 5053138402, 10106276804, 20212553608]

約数ペア:

[(1, 20212553608), (2, 10106276804), (4, 5053138402), (8, 2526569201), (13, 1554811816), (26, 777405908), (52, 388702954), (53, 381368936), (73, 276884296), (104, 194351477), (106, 190684468), (146, 138442148), (191, 105824888), (212, 95342234), (263, 76853816), (292, 69221074), (382, 52912444), (424, 47671117), (526, 38426908), (584, 34610537), (689, 29336072), (764, 26456222), (949, 21298792), (1052, 19213454), (1378, 14668036), (1528, 13228111), (1898, 10649396), (2104, 9606727), (2483, 8140376), (2756, 7334018), (3419, 5911832), (3796, 5324698), (3869, 5224232), (4966, 4070188), (5512, 3667009), (6838, 2955916), (7592, 2662349), (7738, 2612116), (9932, 2035094), (10123, 1996696), (13676, 1477958), (13939, 1450072), (13943, 1449656), (15476, 1306058), (19199, 1052792), (19864, 1017547), (20246, 998348), (27352, 738979), (27878, 725036), (27886, 724828), (30952, 653029), (38398, 526396), (40492, 499174), (50233, 402376), (50297, 401864), (55756, 362518), (55772, 362414), (76796, 263198), (80984, 249587), (100466, 201188), (100594, 200932), (111512, 181259), (111544, 181207), (131599, 153592)]