20805220812

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1\times {\mathrm{48953}}^1$

素因数の和:49398

約数の個数: 48

約数和(自身を含む): 49148249472

約数和(自身を除く): 28343028660

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 331, 428, 642, 662, 993, 1284, 1324, 1986, 3972, 35417, 48953, 70834, 97906, 106251, 141668, 146859, 195812, 212502, 293718, 425004, 587436, 5237971, 10475942, 15713913, 16203443, 20951884, 31427826, 32406886, 48610329, 62855652, 64813772, 97220658, 194441316, 1733768401, 3467536802, 5201305203, 6935073604, 10402610406, 20805220812]

約数ペア:

[(1, 20805220812), (2, 10402610406), (3, 6935073604), (4, 5201305203), (6, 3467536802), (12, 1733768401), (107, 194441316), (214, 97220658), (321, 64813772), (331, 62855652), (428, 48610329), (642, 32406886), (662, 31427826), (993, 20951884), (1284, 16203443), (1324, 15713913), (1986, 10475942), (3972, 5237971), (35417, 587436), (48953, 425004), (70834, 293718), (97906, 212502), (106251, 195812), (141668, 146859)]