20438808

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{601}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 55624800

約数和(自身を除く): 35185992

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 109, 156, 218, 312, 327, 436, 601, 654, 872, 1202, 1308, 1417, 1803, 2404, 2616, 2834, 3606, 4251, 4808, 5668, 7212, 7813, 8502, 11336, 14424, 15626, 17004, 23439, 31252, 34008, 46878, 62504, 65509, 93756, 131018, 187512, 196527, 262036, 393054, 524072, 786108, 851617, 1572216, 1703234, 2554851, 3406468, 5109702, 6812936, 10219404, 20438808]

約数ペア:

[(1, 20438808), (2, 10219404), (3, 6812936), (4, 5109702), (6, 3406468), (8, 2554851), (12, 1703234), (13, 1572216), (24, 851617), (26, 786108), (39, 524072), (52, 393054), (78, 262036), (104, 196527), (109, 187512), (156, 131018), (218, 93756), (312, 65509), (327, 62504), (436, 46878), (601, 34008), (654, 31252), (872, 23439), (1202, 17004), (1308, 15626), (1417, 14424), (1803, 11336), (2404, 8502), (2616, 7813), (2834, 7212), (3606, 5668), (4251, 4808)]