26639840

素因数分解:

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

素因数の和:1179

約数の個数: 48

約数和(自身を含む): 63376992

約数和(自身を除く): 36737152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 167, 334, 668, 835, 997, 1336, 1670, 1994, 2672, 3340, 3988, 4985, 5344, 6680, 7976, 9970, 13360, 15952, 19940, 26720, 31904, 39880, 79760, 159520, 166499, 332998, 665996, 832495, 1331992, 1664990, 2663984, 3329980, 5327968, 6659960, 13319920, 26639840]

約数ペア:

[(1, 26639840), (2, 13319920), (4, 6659960), (5, 5327968), (8, 3329980), (10, 2663984), (16, 1664990), (20, 1331992), (32, 832495), (40, 665996), (80, 332998), (160, 166499), (167, 159520), (334, 79760), (668, 39880), (835, 31904), (997, 26720), (1336, 19940), (1670, 15952), (1994, 13360), (2672, 9970), (3340, 7976), (3988, 6680), (4985, 5344)]