20206404

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 54702648

約数和(自身を除く): 34496244

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 137, 153, 204, 241, 274, 306, 411, 482, 548, 612, 723, 822, 964, 1233, 1446, 1644, 2169, 2329, 2466, 2892, 4097, 4338, 4658, 4932, 6987, 8194, 8676, 9316, 12291, 13974, 16388, 20961, 24582, 27948, 33017, 36873, 41922, 49164, 66034, 73746, 83844, 99051, 132068, 147492, 198102, 297153, 396204, 561289, 594306, 1122578, 1188612, 1683867, 2245156, 3367734, 5051601, 6735468, 10103202, 20206404]

約数ペア:

[(1, 20206404), (2, 10103202), (3, 6735468), (4, 5051601), (6, 3367734), (9, 2245156), (12, 1683867), (17, 1188612), (18, 1122578), (34, 594306), (36, 561289), (51, 396204), (68, 297153), (102, 198102), (137, 147492), (153, 132068), (204, 99051), (241, 83844), (274, 73746), (306, 66034), (411, 49164), (482, 41922), (548, 36873), (612, 33017), (723, 27948), (822, 24582), (964, 20961), (1233, 16388), (1446, 13974), (1644, 12291), (2169, 9316), (2329, 8676), (2466, 8194), (2892, 6987), (4097, 4932), (4338, 4658)]