19774720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{2207}}^1$

素因数の和:2235

約数の個数: 72

約数和(自身を含む): 54157824

約数和(自身を除く): 34383104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2207, 2240, 4414, 4480, 8828, 8960, 11035, 15449, 17656, 22070, 30898, 35312, 44140, 61796, 70624, 77245, 88280, 123592, 141248, 154490, 176560, 247184, 282496, 308980, 353120, 494368, 564992, 617960, 706240, 988736, 1235920, 1412480, 1977472, 2471840, 2824960, 3954944, 4943680, 9887360, 19774720]

約数ペア:

[(1, 19774720), (2, 9887360), (4, 4943680), (5, 3954944), (7, 2824960), (8, 2471840), (10, 1977472), (14, 1412480), (16, 1235920), (20, 988736), (28, 706240), (32, 617960), (35, 564992), (40, 494368), (56, 353120), (64, 308980), (70, 282496), (80, 247184), (112, 176560), (128, 154490), (140, 141248), (160, 123592), (224, 88280), (256, 77245), (280, 70624), (320, 61796), (448, 44140), (560, 35312), (640, 30898), (896, 22070), (1120, 17656), (1280, 15449), (1792, 11035), (2207, 8960), (2240, 8828), (4414, 4480)]