20197856

素因数分解:

$2^5\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2437}}^1$

素因数の和:2491

約数の個数: 48

約数和(自身を含む): 46692576

約数和(自身を除く): 26494720

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 74, 112, 148, 224, 259, 296, 518, 592, 1036, 1184, 2072, 2437, 4144, 4874, 8288, 9748, 17059, 19496, 34118, 38992, 68236, 77984, 90169, 136472, 180338, 272944, 360676, 545888, 631183, 721352, 1262366, 1442704, 2524732, 2885408, 5049464, 10098928, 20197856]

約数ペア:

[(1, 20197856), (2, 10098928), (4, 5049464), (7, 2885408), (8, 2524732), (14, 1442704), (16, 1262366), (28, 721352), (32, 631183), (37, 545888), (56, 360676), (74, 272944), (112, 180338), (148, 136472), (224, 90169), (259, 77984), (296, 68236), (518, 38992), (592, 34118), (1036, 19496), (1184, 17059), (2072, 9748), (2437, 8288), (4144, 4874)]