201027520

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1$

素因数の和:1637

約数の個数: 56

約数和(自身を含む): 479931984

約数和(自身を除く): 278904464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 977, 1286, 1954, 2572, 3215, 3908, 4885, 5144, 6430, 7816, 9770, 10288, 12860, 15632, 19540, 20576, 25720, 31264, 39080, 41152, 51440, 62528, 78160, 102880, 156320, 205760, 312640, 628211, 1256422, 2512844, 3141055, 5025688, 6282110, 10051376, 12564220, 20102752, 25128440, 40205504, 50256880, 100513760, 201027520]

約数ペア:

[(1, 201027520), (2, 100513760), (4, 50256880), (5, 40205504), (8, 25128440), (10, 20102752), (16, 12564220), (20, 10051376), (32, 6282110), (40, 5025688), (64, 3141055), (80, 2512844), (160, 1256422), (320, 628211), (643, 312640), (977, 205760), (1286, 156320), (1954, 102880), (2572, 78160), (3215, 62528), (3908, 51440), (4885, 41152), (5144, 39080), (6430, 31264), (7816, 25720), (9770, 20576), (10288, 19540), (12860, 15632)]