149898798740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{398053}}^1$

素因数の和:399072

約数の個数: 48

約数和(自身を含む): 331690437120

約数和(自身を除く): 181791638380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 991, 1982, 3964, 4955, 9910, 18829, 19820, 37658, 75316, 94145, 188290, 376580, 398053, 796106, 1592212, 1990265, 3980530, 7563007, 7961060, 15126014, 30252028, 37815035, 75630070, 151260140, 394470523, 788941046, 1577882092, 1972352615, 3944705230, 7494939937, 7889410460, 14989879874, 29979759748, 37474699685, 74949399370, 149898798740]

約数ペア:

[(1, 149898798740), (2, 74949399370), (4, 37474699685), (5, 29979759748), (10, 14989879874), (19, 7889410460), (20, 7494939937), (38, 3944705230), (76, 1972352615), (95, 1577882092), (190, 788941046), (380, 394470523), (991, 151260140), (1982, 75630070), (3964, 37815035), (4955, 30252028), (9910, 15126014), (18829, 7961060), (19820, 7563007), (37658, 3980530), (75316, 1990265), (94145, 1592212), (188290, 796106), (376580, 398053)]