40448000

素因数分解:

$2^{12}\times 5^3\times {\mathrm{79}}^1$

素因数の和:118

約数の個数: 104

約数和(自身を含む): 102223680

約数和(自身を除く): 61775680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 125, 128, 158, 160, 200, 250, 256, 316, 320, 395, 400, 500, 512, 632, 640, 790, 800, 1000, 1024, 1264, 1280, 1580, 1600, 1975, 2000, 2048, 2528, 2560, 3160, 3200, 3950, 4000, 4096, 5056, 5120, 6320, 6400, 7900, 8000, 9875, 10112, 10240, 12640, 12800, 15800, 16000, 19750, 20224, 20480, 25280, 25600, 31600, 32000, 39500, 40448, 50560, 51200, 63200, 64000, 79000, 80896, 101120, 102400, 126400, 128000, 158000, 161792, 202240, 252800, 256000, 316000, 323584, 404480, 505600, 512000, 632000, 808960, 1011200, 1264000, 1617920, 2022400, 2528000, 4044800, 5056000, 8089600, 10112000, 20224000, 40448000]

約数ペア:

[(1, 40448000), (2, 20224000), (4, 10112000), (5, 8089600), (8, 5056000), (10, 4044800), (16, 2528000), (20, 2022400), (25, 1617920), (32, 1264000), (40, 1011200), (50, 808960), (64, 632000), (79, 512000), (80, 505600), (100, 404480), (125, 323584), (128, 316000), (158, 256000), (160, 252800), (200, 202240), (250, 161792), (256, 158000), (316, 128000), (320, 126400), (395, 102400), (400, 101120), (500, 80896), (512, 79000), (632, 64000), (640, 63200), (790, 51200), (800, 50560), (1000, 40448), (1024, 39500), (1264, 32000), (1280, 31600), (1580, 25600), (1600, 25280), (1975, 20480), (2000, 20224), (2048, 19750), (2528, 16000), (2560, 15800), (3160, 12800), (3200, 12640), (3950, 10240), (4000, 10112), (4096, 9875), (5056, 8000), (5120, 7900), (6320, 6400)]