20401108

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1367}}^1$

素因数の和:1432

約数の個数: 48

約数和(自身を含む): 45045504

約数和(自身を除く): 24644396

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 182, 287, 364, 533, 574, 1066, 1148, 1367, 2132, 2734, 3731, 5468, 7462, 9569, 14924, 17771, 19138, 35542, 38276, 56047, 71084, 112094, 124397, 224188, 248794, 392329, 497588, 728611, 784658, 1457222, 1569316, 2914444, 5100277, 10200554, 20401108]

約数ペア:

[(1, 20401108), (2, 10200554), (4, 5100277), (7, 2914444), (13, 1569316), (14, 1457222), (26, 784658), (28, 728611), (41, 497588), (52, 392329), (82, 248794), (91, 224188), (164, 124397), (182, 112094), (287, 71084), (364, 56047), (533, 38276), (574, 35542), (1066, 19138), (1148, 17771), (1367, 14924), (2132, 9569), (2734, 7462), (3731, 5468)]