71921840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47317}}^1$

素因数の和:47349

約数の個数: 40

約数和(自身を含む): 176022960

約数和(自身を除く): 104101120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 47317, 94634, 189268, 236585, 378536, 473170, 757072, 899023, 946340, 1798046, 1892680, 3596092, 3785360, 4495115, 7192184, 8990230, 14384368, 17980460, 35960920, 71921840]

約数ペア:

[(1, 71921840), (2, 35960920), (4, 17980460), (5, 14384368), (8, 8990230), (10, 7192184), (16, 4495115), (19, 3785360), (20, 3596092), (38, 1892680), (40, 1798046), (76, 946340), (80, 899023), (95, 757072), (152, 473170), (190, 378536), (304, 236585), (380, 189268), (760, 94634), (1520, 47317)]