20745424

素因数分解:

$2^4\times 7^2\times {\mathrm{47}}^1\times {\mathrm{563}}^1$

素因数の和:632

約数の個数: 60

約数和(自身を含む): 47836224

約数和(自身を除く): 27090800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 49, 56, 94, 98, 112, 188, 196, 329, 376, 392, 563, 658, 752, 784, 1126, 1316, 2252, 2303, 2632, 3941, 4504, 4606, 5264, 7882, 9008, 9212, 15764, 18424, 26461, 27587, 31528, 36848, 52922, 55174, 63056, 105844, 110348, 185227, 211688, 220696, 370454, 423376, 441392, 740908, 1296589, 1481816, 2593178, 2963632, 5186356, 10372712, 20745424]

約数ペア:

[(1, 20745424), (2, 10372712), (4, 5186356), (7, 2963632), (8, 2593178), (14, 1481816), (16, 1296589), (28, 740908), (47, 441392), (49, 423376), (56, 370454), (94, 220696), (98, 211688), (112, 185227), (188, 110348), (196, 105844), (329, 63056), (376, 55174), (392, 52922), (563, 36848), (658, 31528), (752, 27587), (784, 26461), (1126, 18424), (1316, 15764), (2252, 9212), (2303, 9008), (2632, 7882), (3941, 5264), (4504, 4606)]