16310920

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{997}}^1$

素因数の和:1417

約数の個数: 32

約数和(自身を含む): 36826200

約数和(自身を除く): 20515280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 997, 1636, 1994, 2045, 3272, 3988, 4090, 4985, 7976, 8180, 9970, 16360, 19940, 39880, 407773, 815546, 1631092, 2038865, 3262184, 4077730, 8155460, 16310920]

約数ペア:

[(1, 16310920), (2, 8155460), (4, 4077730), (5, 3262184), (8, 2038865), (10, 1631092), (20, 815546), (40, 407773), (409, 39880), (818, 19940), (997, 16360), (1636, 9970), (1994, 8180), (2045, 7976), (3272, 4985), (3988, 4090)]