21316960

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{2719}}^1$

素因数の和:2748

約数の個数: 72

約数和(自身を含む): 58605120

約数和(自身を除く): 37288160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 2719, 3920, 5438, 7840, 10876, 13595, 19033, 21752, 27190, 38066, 43504, 54380, 76132, 87008, 95165, 108760, 133231, 152264, 190330, 217520, 266462, 304528, 380660, 435040, 532924, 609056, 666155, 761320, 1065848, 1332310, 1522640, 2131696, 2664620, 3045280, 4263392, 5329240, 10658480, 21316960]

約数ペア:

[(1, 21316960), (2, 10658480), (4, 5329240), (5, 4263392), (7, 3045280), (8, 2664620), (10, 2131696), (14, 1522640), (16, 1332310), (20, 1065848), (28, 761320), (32, 666155), (35, 609056), (40, 532924), (49, 435040), (56, 380660), (70, 304528), (80, 266462), (98, 217520), (112, 190330), (140, 152264), (160, 133231), (196, 108760), (224, 95165), (245, 87008), (280, 76132), (392, 54380), (490, 43504), (560, 38066), (784, 27190), (980, 21752), (1120, 19033), (1568, 13595), (1960, 10876), (2719, 7840), (3920, 5438)]