39894820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{40709}}^1$

素因数の和:40732

約数の個数: 36

約数和(自身を含む): 97459740

約数和(自身を除く): 57564920

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 40709, 81418, 162836, 203545, 284963, 407090, 569926, 814180, 1139852, 1424815, 1994741, 2849630, 3989482, 5699260, 7978964, 9973705, 19947410, 39894820]

約数ペア:

[(1, 39894820), (2, 19947410), (4, 9973705), (5, 7978964), (7, 5699260), (10, 3989482), (14, 2849630), (20, 1994741), (28, 1424815), (35, 1139852), (49, 814180), (70, 569926), (98, 407090), (140, 284963), (196, 203545), (245, 162836), (490, 81418), (980, 40709)]