19700990

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{251}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 16877314

約数列:

[1, 2, 5, 10, 47, 94, 167, 235, 251, 334, 470, 502, 835, 1255, 1670, 2510, 7849, 11797, 15698, 23594, 39245, 41917, 58985, 78490, 83834, 117970, 209585, 419170, 1970099, 3940198, 9850495, 19700990]

約数ペア:

[(1, 19700990), (2, 9850495), (5, 3940198), (10, 1970099), (47, 419170), (94, 209585), (167, 117970), (235, 83834), (251, 78490), (334, 58985), (470, 41917), (502, 39245), (835, 23594), (1255, 15698), (1670, 11797), (2510, 7849)]