20007883609

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^2\times {\mathrm{541}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 25009701120

約数和(自身を除く): 5001817511

約数列:

[1, 7, 23, 29, 89, 161, 203, 541, 623, 667, 2047, 2581, 3787, 4669, 7921, 12443, 14329, 15689, 18067, 48149, 55447, 59363, 87101, 109823, 182183, 229709, 337043, 360847, 415541, 1107427, 1275281, 1396321, 1607963, 2525929, 4285261, 5283307, 7751989, 9774247, 29996827, 32115383, 36983149, 98561003, 124272569, 224807681, 689927021, 869907983, 2858269087, 20007883609]

約数ペア:

[(1, 20007883609), (7, 2858269087), (23, 869907983), (29, 689927021), (89, 224807681), (161, 124272569), (203, 98561003), (541, 36983149), (623, 32115383), (667, 29996827), (2047, 9774247), (2581, 7751989), (3787, 5283307), (4669, 4285261), (7921, 2525929), (12443, 1607963), (14329, 1396321), (15689, 1275281), (18067, 1107427), (48149, 415541), (55447, 360847), (59363, 337043), (87101, 229709), (109823, 182183)]