268808216840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7621}}^1\times {\mathrm{20507}}^1$

素因数の和:28182

約数の個数: 64

約数和(自身を含む): 618995424960

約数和(自身を除く): 350187208120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7621, 15242, 20507, 30484, 38105, 41014, 60968, 76210, 82028, 102535, 152420, 164056, 205070, 304840, 327703, 410140, 655406, 820280, 881801, 1310812, 1638515, 1763602, 2621624, 3277030, 3527204, 4409005, 6554060, 7054408, 8818010, 13108120, 17636020, 35272040, 156283847, 312567694, 625135388, 781419235, 1250270776, 1562838470, 3125676940, 6251353880, 6720205421, 13440410842, 26880821684, 33601027105, 53761643368, 67202054210, 134404108420, 268808216840]

約数ペア:

[(1, 268808216840), (2, 134404108420), (4, 67202054210), (5, 53761643368), (8, 33601027105), (10, 26880821684), (20, 13440410842), (40, 6720205421), (43, 6251353880), (86, 3125676940), (172, 1562838470), (215, 1250270776), (344, 781419235), (430, 625135388), (860, 312567694), (1720, 156283847), (7621, 35272040), (15242, 17636020), (20507, 13108120), (30484, 8818010), (38105, 7054408), (41014, 6554060), (60968, 4409005), (76210, 3527204), (82028, 3277030), (102535, 2621624), (152420, 1763602), (164056, 1638515), (205070, 1310812), (304840, 881801), (327703, 820280), (410140, 655406)]