640889280

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{74177}}^1$

素因数の和:74203

約数の個数: 112

約数和(自身を含む): 2260945440

約数和(自身を除く): 1620056160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2880, 4320, 8640, 74177, 148354, 222531, 296708, 370885, 445062, 593416, 667593, 741770, 890124, 1112655, 1186832, 1335186, 1483540, 1780248, 2002779, 2225310, 2373664, 2670372, 2967080, 3337965, 3560496, 4005558, 4450620, 4747328, 5340744, 5934160, 6675930, 7120992, 8011116, 8901240, 10013895, 10681488, 11868320, 13351860, 14241984, 16022232, 17802480, 20027790, 21362976, 23736640, 26703720, 32044464, 35604960, 40055580, 42725952, 53407440, 64088928, 71209920, 80111160, 106814880, 128177856, 160222320, 213629760, 320444640, 640889280]

約数ペア:

[(1, 640889280), (2, 320444640), (3, 213629760), (4, 160222320), (5, 128177856), (6, 106814880), (8, 80111160), (9, 71209920), (10, 64088928), (12, 53407440), (15, 42725952), (16, 40055580), (18, 35604960), (20, 32044464), (24, 26703720), (27, 23736640), (30, 21362976), (32, 20027790), (36, 17802480), (40, 16022232), (45, 14241984), (48, 13351860), (54, 11868320), (60, 10681488), (64, 10013895), (72, 8901240), (80, 8011116), (90, 7120992), (96, 6675930), (108, 5934160), (120, 5340744), (135, 4747328), (144, 4450620), (160, 4005558), (180, 3560496), (192, 3337965), (216, 2967080), (240, 2670372), (270, 2373664), (288, 2225310), (320, 2002779), (360, 1780248), (432, 1483540), (480, 1335186), (540, 1186832), (576, 1112655), (720, 890124), (864, 741770), (960, 667593), (1080, 593416), (1440, 445062), (1728, 370885), (2160, 296708), (2880, 222531), (4320, 148354), (8640, 74177)]