19597060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19997}}^1$

素因数の和:20020

約数の個数: 36

約数和(自身を含む): 47875212

約数和(自身を除く): 28278152

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 19997, 39994, 79988, 99985, 139979, 199970, 279958, 399940, 559916, 699895, 979853, 1399790, 1959706, 2799580, 3919412, 4899265, 9798530, 19597060]

約数ペア:

[(1, 19597060), (2, 9798530), (4, 4899265), (5, 3919412), (7, 2799580), (10, 1959706), (14, 1399790), (20, 979853), (28, 699895), (35, 559916), (49, 399940), (70, 279958), (98, 199970), (140, 139979), (196, 99985), (245, 79988), (490, 39994), (980, 19997)]