26161280

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1057

約数の個数: 64

約数和(自身を含む): 64131480

約数和(自身を除く): 37970200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 128, 160, 164, 205, 320, 328, 410, 640, 656, 820, 997, 1312, 1640, 1994, 2624, 3280, 3988, 4985, 5248, 6560, 7976, 9970, 13120, 15952, 19940, 26240, 31904, 39880, 40877, 63808, 79760, 81754, 127616, 159520, 163508, 204385, 319040, 327016, 408770, 638080, 654032, 817540, 1308064, 1635080, 2616128, 3270160, 5232256, 6540320, 13080640, 26161280]

約数ペア:

[(1, 26161280), (2, 13080640), (4, 6540320), (5, 5232256), (8, 3270160), (10, 2616128), (16, 1635080), (20, 1308064), (32, 817540), (40, 654032), (41, 638080), (64, 408770), (80, 327016), (82, 319040), (128, 204385), (160, 163508), (164, 159520), (205, 127616), (320, 81754), (328, 79760), (410, 63808), (640, 40877), (656, 39880), (820, 31904), (997, 26240), (1312, 19940), (1640, 15952), (1994, 13120), (2624, 9970), (3280, 7976), (3988, 6560), (4985, 5248)]