20058020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 43965936

約数和(自身を除く): 23907916

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 401, 410, 610, 802, 820, 1220, 1604, 2005, 2501, 4010, 5002, 8020, 10004, 12505, 16441, 24461, 25010, 32882, 48922, 50020, 65764, 82205, 97844, 122305, 164410, 244610, 328820, 489220, 1002901, 2005802, 4011604, 5014505, 10029010, 20058020]

約数ペア:

[(1, 20058020), (2, 10029010), (4, 5014505), (5, 4011604), (10, 2005802), (20, 1002901), (41, 489220), (61, 328820), (82, 244610), (122, 164410), (164, 122305), (205, 97844), (244, 82205), (305, 65764), (401, 50020), (410, 48922), (610, 32882), (802, 25010), (820, 24461), (1220, 16441), (1604, 12505), (2005, 10004), (2501, 8020), (4010, 5002)]