20012808

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{271}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 53464320

約数和(自身を除く): 33451512

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 181, 204, 271, 362, 408, 542, 543, 724, 813, 1084, 1086, 1448, 1626, 2168, 2172, 3077, 3252, 4344, 4607, 6154, 6504, 9214, 9231, 12308, 13821, 18428, 18462, 24616, 27642, 36856, 36924, 49051, 55284, 73848, 98102, 110568, 147153, 196204, 294306, 392408, 588612, 833867, 1177224, 1667734, 2501601, 3335468, 5003202, 6670936, 10006404, 20012808]

約数ペア:

[(1, 20012808), (2, 10006404), (3, 6670936), (4, 5003202), (6, 3335468), (8, 2501601), (12, 1667734), (17, 1177224), (24, 833867), (34, 588612), (51, 392408), (68, 294306), (102, 196204), (136, 147153), (181, 110568), (204, 98102), (271, 73848), (362, 55284), (408, 49051), (542, 36924), (543, 36856), (724, 27642), (813, 24616), (1084, 18462), (1086, 18428), (1448, 13821), (1626, 12308), (2168, 9231), (2172, 9214), (3077, 6504), (3252, 6154), (4344, 4607)]