138971280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{82721}}^1$

素因数の和:82744

約数の個数: 80

約数和(自身を含む): 492361344

約数和(自身を除く): 353390064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 82721, 165442, 248163, 330884, 413605, 496326, 579047, 661768, 827210, 992652, 1158094, 1240815, 1323536, 1654420, 1737141, 1985304, 2316188, 2481630, 2895235, 3308840, 3474282, 3970608, 4632376, 4963260, 5790470, 6617680, 6948564, 8685705, 9264752, 9926520, 11580940, 13897128, 17371410, 19853040, 23161880, 27794256, 34742820, 46323760, 69485640, 138971280]

約数ペア:

[(1, 138971280), (2, 69485640), (3, 46323760), (4, 34742820), (5, 27794256), (6, 23161880), (7, 19853040), (8, 17371410), (10, 13897128), (12, 11580940), (14, 9926520), (15, 9264752), (16, 8685705), (20, 6948564), (21, 6617680), (24, 5790470), (28, 4963260), (30, 4632376), (35, 3970608), (40, 3474282), (42, 3308840), (48, 2895235), (56, 2481630), (60, 2316188), (70, 1985304), (80, 1737141), (84, 1654420), (105, 1323536), (112, 1240815), (120, 1158094), (140, 992652), (168, 827210), (210, 661768), (240, 579047), (280, 496326), (336, 413605), (420, 330884), (560, 248163), (840, 165442), (1680, 82721)]