28687680

素因数分解:

$2^6\times 3^2\times 5^1\times 7^1\times {\mathrm{1423}}^1$

素因数の和:1453

約数の個数: 168

約数和(自身を含む): 112849152

約数和(自身を除く): 84161472

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 280, 288, 315, 320, 336, 360, 420, 448, 480, 504, 560, 576, 630, 672, 720, 840, 960, 1008, 1120, 1260, 1344, 1423, 1440, 1680, 2016, 2240, 2520, 2846, 2880, 3360, 4032, 4269, 5040, 5692, 6720, 7115, 8538, 9961, 10080, 11384, 12807, 14230, 17076, 19922, 20160, 21345, 22768, 25614, 28460, 29883, 34152, 39844, 42690, 45536, 49805, 51228, 56920, 59766, 64035, 68304, 79688, 85380, 89649, 91072, 99610, 102456, 113840, 119532, 128070, 136608, 149415, 159376, 170760, 179298, 199220, 204912, 227680, 239064, 256140, 273216, 298830, 318752, 341520, 358596, 398440, 409824, 448245, 455360, 478128, 512280, 597660, 637504, 683040, 717192, 796880, 819648, 896490, 956256, 1024560, 1195320, 1366080, 1434384, 1593760, 1792980, 1912512, 2049120, 2390640, 2868768, 3187520, 3585960, 4098240, 4781280, 5737536, 7171920, 9562560, 14343840, 28687680]

約数ペア:

[(1, 28687680), (2, 14343840), (3, 9562560), (4, 7171920), (5, 5737536), (6, 4781280), (7, 4098240), (8, 3585960), (9, 3187520), (10, 2868768), (12, 2390640), (14, 2049120), (15, 1912512), (16, 1792980), (18, 1593760), (20, 1434384), (21, 1366080), (24, 1195320), (28, 1024560), (30, 956256), (32, 896490), (35, 819648), (36, 796880), (40, 717192), (42, 683040), (45, 637504), (48, 597660), (56, 512280), (60, 478128), (63, 455360), (64, 448245), (70, 409824), (72, 398440), (80, 358596), (84, 341520), (90, 318752), (96, 298830), (105, 273216), (112, 256140), (120, 239064), (126, 227680), (140, 204912), (144, 199220), (160, 179298), (168, 170760), (180, 159376), (192, 149415), (210, 136608), (224, 128070), (240, 119532), (252, 113840), (280, 102456), (288, 99610), (315, 91072), (320, 89649), (336, 85380), (360, 79688), (420, 68304), (448, 64035), (480, 59766), (504, 56920), (560, 51228), (576, 49805), (630, 45536), (672, 42690), (720, 39844), (840, 34152), (960, 29883), (1008, 28460), (1120, 25614), (1260, 22768), (1344, 21345), (1423, 20160), (1440, 19922), (1680, 17076), (2016, 14230), (2240, 12807), (2520, 11384), (2846, 10080), (2880, 9961), (3360, 8538), (4032, 7115), (4269, 6720), (5040, 5692)]