20740608

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{643}}^1$

素因数の和:674

約数の個数: 120

約数和(自身を含む): 68516448

約数和(自身を除く): 47775840

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 256, 288, 336, 384, 448, 504, 512, 576, 643, 672, 768, 896, 1008, 1152, 1286, 1344, 1536, 1792, 1929, 2016, 2304, 2572, 2688, 3584, 3858, 4032, 4501, 4608, 5144, 5376, 5787, 7716, 8064, 9002, 10288, 10752, 11574, 13503, 15432, 16128, 18004, 20576, 23148, 27006, 30864, 32256, 36008, 40509, 41152, 46296, 54012, 61728, 72016, 81018, 82304, 92592, 108024, 123456, 144032, 162036, 164608, 185184, 216048, 246912, 288064, 324072, 329216, 370368, 432096, 493824, 576128, 648144, 740736, 864192, 987648, 1152256, 1296288, 1481472, 1728384, 2304512, 2592576, 2962944, 3456768, 5185152, 6913536, 10370304, 20740608]

約数ペア:

[(1, 20740608), (2, 10370304), (3, 6913536), (4, 5185152), (6, 3456768), (7, 2962944), (8, 2592576), (9, 2304512), (12, 1728384), (14, 1481472), (16, 1296288), (18, 1152256), (21, 987648), (24, 864192), (28, 740736), (32, 648144), (36, 576128), (42, 493824), (48, 432096), (56, 370368), (63, 329216), (64, 324072), (72, 288064), (84, 246912), (96, 216048), (112, 185184), (126, 164608), (128, 162036), (144, 144032), (168, 123456), (192, 108024), (224, 92592), (252, 82304), (256, 81018), (288, 72016), (336, 61728), (384, 54012), (448, 46296), (504, 41152), (512, 40509), (576, 36008), (643, 32256), (672, 30864), (768, 27006), (896, 23148), (1008, 20576), (1152, 18004), (1286, 16128), (1344, 15432), (1536, 13503), (1792, 11574), (1929, 10752), (2016, 10288), (2304, 9002), (2572, 8064), (2688, 7716), (3584, 5787), (3858, 5376), (4032, 5144), (4501, 4608)]