20952818216

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{619}}^1\times {\mathrm{1823}}^1$

素因数の和:2670

約数の個数: 64

約数和(自身を含む): 43154380800

約数和(自身を除く): 22201562584

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 211, 422, 619, 844, 1238, 1688, 1823, 2321, 2476, 3646, 4642, 4952, 6809, 7292, 9284, 13618, 14584, 18568, 20053, 27236, 40106, 54472, 80212, 130609, 160424, 261218, 384653, 522436, 769306, 1044872, 1128437, 1436699, 1538612, 2256874, 2873398, 3077224, 4231183, 4513748, 5746796, 8462366, 9027496, 11493592, 12412807, 16924732, 24825614, 33849464, 49651228, 99302456, 238100207, 476200414, 952400828, 1904801656, 2619102277, 5238204554, 10476409108, 20952818216]

約数ペア:

[(1, 20952818216), (2, 10476409108), (4, 5238204554), (8, 2619102277), (11, 1904801656), (22, 952400828), (44, 476200414), (88, 238100207), (211, 99302456), (422, 49651228), (619, 33849464), (844, 24825614), (1238, 16924732), (1688, 12412807), (1823, 11493592), (2321, 9027496), (2476, 8462366), (3646, 5746796), (4642, 4513748), (4952, 4231183), (6809, 3077224), (7292, 2873398), (9284, 2256874), (13618, 1538612), (14584, 1436699), (18568, 1128437), (20053, 1044872), (27236, 769306), (40106, 522436), (54472, 384653), (80212, 261218), (130609, 160424)]