217424560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{159871}}^1$

素因数の和:159901

約数の個数: 40

約数和(自身を含む): 535251456

約数和(自身を除く): 317826896

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 159871, 319742, 639484, 799355, 1278968, 1598710, 2557936, 2717807, 3197420, 5435614, 6394840, 10871228, 12789680, 13589035, 21742456, 27178070, 43484912, 54356140, 108712280, 217424560]

約数ペア:

[(1, 217424560), (2, 108712280), (4, 54356140), (5, 43484912), (8, 27178070), (10, 21742456), (16, 13589035), (17, 12789680), (20, 10871228), (34, 6394840), (40, 5435614), (68, 3197420), (80, 2717807), (85, 2557936), (136, 1598710), (170, 1278968), (272, 799355), (340, 639484), (680, 319742), (1360, 159871)]