138765280

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6829}}^1$

素因数の和:6971

約数の個数: 48

約数和(自身を含む): 330462720

約数和(自身を除く): 191697440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6829, 10160, 13658, 20320, 27316, 34145, 54632, 68290, 109264, 136580, 218528, 273160, 546320, 867283, 1092640, 1734566, 3469132, 4336415, 6938264, 8672830, 13876528, 17345660, 27753056, 34691320, 69382640, 138765280]

約数ペア:

[(1, 138765280), (2, 69382640), (4, 34691320), (5, 27753056), (8, 17345660), (10, 13876528), (16, 8672830), (20, 6938264), (32, 4336415), (40, 3469132), (80, 1734566), (127, 1092640), (160, 867283), (254, 546320), (508, 273160), (635, 218528), (1016, 136580), (1270, 109264), (2032, 68290), (2540, 54632), (4064, 34145), (5080, 27316), (6829, 20320), (10160, 13658)]