42887740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{409}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 106006320

約数和(自身を除く): 63118580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 107, 140, 196, 214, 245, 409, 428, 490, 535, 749, 818, 980, 1070, 1498, 1636, 2045, 2140, 2863, 2996, 3745, 4090, 5243, 5726, 7490, 8180, 10486, 11452, 14315, 14980, 20041, 20972, 26215, 28630, 40082, 43763, 52430, 57260, 80164, 87526, 100205, 104860, 175052, 200410, 218815, 306341, 400820, 437630, 612682, 875260, 1225364, 1531705, 2144387, 3063410, 4288774, 6126820, 8577548, 10721935, 21443870, 42887740]

約数ペア:

[(1, 42887740), (2, 21443870), (4, 10721935), (5, 8577548), (7, 6126820), (10, 4288774), (14, 3063410), (20, 2144387), (28, 1531705), (35, 1225364), (49, 875260), (70, 612682), (98, 437630), (107, 400820), (140, 306341), (196, 218815), (214, 200410), (245, 175052), (409, 104860), (428, 100205), (490, 87526), (535, 80164), (749, 57260), (818, 52430), (980, 43763), (1070, 40082), (1498, 28630), (1636, 26215), (2045, 20972), (2140, 20041), (2863, 14980), (2996, 14315), (3745, 11452), (4090, 10486), (5243, 8180), (5726, 7490)]