20696521472

素因数分解:

$2^8\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{5261}}^1$

素因数の和:5426

約数の個数: 108

約数和(自身を含む): 45775527168

約数和(自身を除く): 25079005696

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 121, 127, 128, 176, 242, 254, 256, 352, 484, 508, 704, 968, 1016, 1397, 1408, 1936, 2032, 2794, 2816, 3872, 4064, 5261, 5588, 7744, 8128, 10522, 11176, 15367, 15488, 16256, 21044, 22352, 30734, 30976, 32512, 42088, 44704, 57871, 61468, 84176, 89408, 115742, 122936, 168352, 178816, 231484, 245872, 336704, 357632, 462968, 491744, 636581, 668147, 673408, 925936, 983488, 1273162, 1336294, 1346816, 1851872, 1966976, 2546324, 2672588, 3703744, 3933952, 5092648, 5345176, 7349617, 7407488, 10185296, 10690352, 14699234, 14814976, 20370592, 21380704, 29398468, 40741184, 42761408, 58796936, 80845787, 81482368, 85522816, 117593872, 161691574, 162964736, 171045632, 235187744, 323383148, 470375488, 646766296, 940750976, 1293532592, 1881501952, 2587065184, 5174130368, 10348260736, 20696521472]

約数ペア:

[(1, 20696521472), (2, 10348260736), (4, 5174130368), (8, 2587065184), (11, 1881501952), (16, 1293532592), (22, 940750976), (32, 646766296), (44, 470375488), (64, 323383148), (88, 235187744), (121, 171045632), (127, 162964736), (128, 161691574), (176, 117593872), (242, 85522816), (254, 81482368), (256, 80845787), (352, 58796936), (484, 42761408), (508, 40741184), (704, 29398468), (968, 21380704), (1016, 20370592), (1397, 14814976), (1408, 14699234), (1936, 10690352), (2032, 10185296), (2794, 7407488), (2816, 7349617), (3872, 5345176), (4064, 5092648), (5261, 3933952), (5588, 3703744), (7744, 2672588), (8128, 2546324), (10522, 1966976), (11176, 1851872), (15367, 1346816), (15488, 1336294), (16256, 1273162), (21044, 983488), (22352, 925936), (30734, 673408), (30976, 668147), (32512, 636581), (42088, 491744), (44704, 462968), (57871, 357632), (61468, 336704), (84176, 245872), (89408, 231484), (115742, 178816), (122936, 168352)]