13319920

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{997}}^1$

素因数の和:1177

約数の個数: 40

約数和(自身を含む): 31185504

約数和(自身を除く): 17865584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 997, 1336, 1670, 1994, 2672, 3340, 3988, 4985, 6680, 7976, 9970, 13360, 15952, 19940, 39880, 79760, 166499, 332998, 665996, 832495, 1331992, 1664990, 2663984, 3329980, 6659960, 13319920]

約数ペア:

[(1, 13319920), (2, 6659960), (4, 3329980), (5, 2663984), (8, 1664990), (10, 1331992), (16, 832495), (20, 665996), (40, 332998), (80, 166499), (167, 79760), (334, 39880), (668, 19940), (835, 15952), (997, 13360), (1336, 9970), (1670, 7976), (1994, 6680), (2672, 4985), (3340, 3988)]