51454280

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{857}}^1$

素因数の和:966

約数の個数: 64

約数和(自身を含む): 123552000

約数和(自身を除く): 72097720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 632, 760, 790, 857, 1501, 1580, 1714, 3002, 3160, 3428, 4285, 6004, 6856, 7505, 8570, 12008, 15010, 16283, 17140, 30020, 32566, 34280, 60040, 65132, 67703, 81415, 130264, 135406, 162830, 270812, 325660, 338515, 541624, 651320, 677030, 1286357, 1354060, 2572714, 2708120, 5145428, 6431785, 10290856, 12863570, 25727140, 51454280]

約数ペア:

[(1, 51454280), (2, 25727140), (4, 12863570), (5, 10290856), (8, 6431785), (10, 5145428), (19, 2708120), (20, 2572714), (38, 1354060), (40, 1286357), (76, 677030), (79, 651320), (95, 541624), (152, 338515), (158, 325660), (190, 270812), (316, 162830), (380, 135406), (395, 130264), (632, 81415), (760, 67703), (790, 65132), (857, 60040), (1501, 34280), (1580, 32566), (1714, 30020), (3002, 17140), (3160, 16283), (3428, 15010), (4285, 12008), (6004, 8570), (6856, 7505)]