221192020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{15643}}^1$

素因数の和:15760

約数の個数: 48

約数和(自身を含む): 536151168

約数和(自身を除く): 314959148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 15643, 31286, 62572, 78215, 109501, 156430, 219002, 312860, 438004, 547505, 1095010, 1579943, 2190020, 3159886, 6319772, 7899715, 11059601, 15799430, 22119202, 31598860, 44238404, 55298005, 110596010, 221192020]

約数ペア:

[(1, 221192020), (2, 110596010), (4, 55298005), (5, 44238404), (7, 31598860), (10, 22119202), (14, 15799430), (20, 11059601), (28, 7899715), (35, 6319772), (70, 3159886), (101, 2190020), (140, 1579943), (202, 1095010), (404, 547505), (505, 438004), (707, 312860), (1010, 219002), (1414, 156430), (2020, 109501), (2828, 78215), (3535, 62572), (7070, 31286), (14140, 15643)]