20197088

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 42565824

約数和(自身を除く): 22368736

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 137, 271, 272, 274, 542, 544, 548, 1084, 1096, 2168, 2192, 2329, 4336, 4384, 4607, 4658, 8672, 9214, 9316, 18428, 18632, 36856, 37127, 37264, 73712, 74254, 74528, 147424, 148508, 297016, 594032, 631159, 1188064, 1262318, 2524636, 5049272, 10098544, 20197088]

約数ペア:

[(1, 20197088), (2, 10098544), (4, 5049272), (8, 2524636), (16, 1262318), (17, 1188064), (32, 631159), (34, 594032), (68, 297016), (136, 148508), (137, 147424), (271, 74528), (272, 74254), (274, 73712), (542, 37264), (544, 37127), (548, 36856), (1084, 18632), (1096, 18428), (2168, 9316), (2192, 9214), (2329, 8672), (4336, 4658), (4384, 4607)]