19143680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3739}}^1$

素因数の和:3764

約数の個数: 44

約数和(自身を含む): 45934680

約数和(自身を除く): 26791000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3739, 5120, 7478, 14956, 18695, 29912, 37390, 59824, 74780, 119648, 149560, 239296, 299120, 478592, 598240, 957184, 1196480, 1914368, 2392960, 3828736, 4785920, 9571840, 19143680]

約数ペア:

[(1, 19143680), (2, 9571840), (4, 4785920), (5, 3828736), (8, 2392960), (10, 1914368), (16, 1196480), (20, 957184), (32, 598240), (40, 478592), (64, 299120), (80, 239296), (128, 149560), (160, 119648), (256, 74780), (320, 59824), (512, 37390), (640, 29912), (1024, 18695), (1280, 14956), (2560, 7478), (3739, 5120)]