20475672

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{397}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 58840320

約数和(自身を除く): 38364648

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 307, 397, 614, 794, 921, 1191, 1228, 1588, 1842, 2149, 2382, 2456, 2779, 3176, 3684, 4298, 4764, 5558, 6447, 7368, 8337, 8596, 9528, 11116, 12894, 16674, 17192, 22232, 25788, 33348, 51576, 66696, 121879, 243758, 365637, 487516, 731274, 853153, 975032, 1462548, 1706306, 2559459, 2925096, 3412612, 5118918, 6825224, 10237836, 20475672]

約数ペア:

[(1, 20475672), (2, 10237836), (3, 6825224), (4, 5118918), (6, 3412612), (7, 2925096), (8, 2559459), (12, 1706306), (14, 1462548), (21, 975032), (24, 853153), (28, 731274), (42, 487516), (56, 365637), (84, 243758), (168, 121879), (307, 66696), (397, 51576), (614, 33348), (794, 25788), (921, 22232), (1191, 17192), (1228, 16674), (1588, 12894), (1842, 11116), (2149, 9528), (2382, 8596), (2456, 8337), (2779, 7368), (3176, 6447), (3684, 5558), (4298, 4764)]