28394880

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:688

約数の個数: 128

約数和(自身を含む): 94590720

約数和(自身を除く): 66195840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 64, 69, 80, 92, 96, 115, 120, 128, 138, 160, 184, 192, 230, 240, 276, 320, 345, 368, 384, 460, 480, 552, 640, 643, 690, 736, 920, 960, 1104, 1286, 1380, 1472, 1840, 1920, 1929, 2208, 2572, 2760, 2944, 3215, 3680, 3858, 4416, 5144, 5520, 6430, 7360, 7716, 8832, 9645, 10288, 11040, 12860, 14720, 14789, 15432, 19290, 20576, 22080, 25720, 29578, 30864, 38580, 41152, 44160, 44367, 51440, 59156, 61728, 73945, 77160, 82304, 88734, 102880, 118312, 123456, 147890, 154320, 177468, 205760, 221835, 236624, 246912, 295780, 308640, 354936, 411520, 443670, 473248, 591560, 617280, 709872, 887340, 946496, 1183120, 1234560, 1419744, 1774680, 1892992, 2366240, 2839488, 3549360, 4732480, 5678976, 7098720, 9464960, 14197440, 28394880]

約数ペア:

[(1, 28394880), (2, 14197440), (3, 9464960), (4, 7098720), (5, 5678976), (6, 4732480), (8, 3549360), (10, 2839488), (12, 2366240), (15, 1892992), (16, 1774680), (20, 1419744), (23, 1234560), (24, 1183120), (30, 946496), (32, 887340), (40, 709872), (46, 617280), (48, 591560), (60, 473248), (64, 443670), (69, 411520), (80, 354936), (92, 308640), (96, 295780), (115, 246912), (120, 236624), (128, 221835), (138, 205760), (160, 177468), (184, 154320), (192, 147890), (230, 123456), (240, 118312), (276, 102880), (320, 88734), (345, 82304), (368, 77160), (384, 73945), (460, 61728), (480, 59156), (552, 51440), (640, 44367), (643, 44160), (690, 41152), (736, 38580), (920, 30864), (960, 29578), (1104, 25720), (1286, 22080), (1380, 20576), (1472, 19290), (1840, 15432), (1920, 14789), (1929, 14720), (2208, 12860), (2572, 11040), (2760, 10288), (2944, 9645), (3215, 8832), (3680, 7716), (3858, 7360), (4416, 6430), (5144, 5520)]