123648280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3371}}^1$

素因数の和:3520

約数の個数: 64

約数和(自身を含む): 320474880

約数和(自身を除く): 196826600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1834, 2620, 3371, 3668, 4585, 5240, 6742, 7336, 9170, 13484, 16855, 18340, 23597, 26968, 33710, 36680, 47194, 67420, 94388, 117985, 134840, 188776, 235970, 441601, 471940, 883202, 943880, 1766404, 2208005, 3091207, 3532808, 4416010, 6182414, 8832020, 12364828, 15456035, 17664040, 24729656, 30912070, 61824140, 123648280]

約数ペア:

[(1, 123648280), (2, 61824140), (4, 30912070), (5, 24729656), (7, 17664040), (8, 15456035), (10, 12364828), (14, 8832020), (20, 6182414), (28, 4416010), (35, 3532808), (40, 3091207), (56, 2208005), (70, 1766404), (131, 943880), (140, 883202), (262, 471940), (280, 441601), (524, 235970), (655, 188776), (917, 134840), (1048, 117985), (1310, 94388), (1834, 67420), (2620, 47194), (3371, 36680), (3668, 33710), (4585, 26968), (5240, 23597), (6742, 18340), (7336, 16855), (9170, 13484)]