18101140

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 39778704

約数和(自身を除く): 21677564

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 244, 305, 370, 401, 610, 740, 802, 1220, 1604, 2005, 2257, 4010, 4514, 8020, 9028, 11285, 14837, 22570, 24461, 29674, 45140, 48922, 59348, 74185, 97844, 122305, 148370, 244610, 296740, 489220, 905057, 1810114, 3620228, 4525285, 9050570, 18101140]

約数ペア:

[(1, 18101140), (2, 9050570), (4, 4525285), (5, 3620228), (10, 1810114), (20, 905057), (37, 489220), (61, 296740), (74, 244610), (122, 148370), (148, 122305), (185, 97844), (244, 74185), (305, 59348), (370, 48922), (401, 45140), (610, 29674), (740, 24461), (802, 22570), (1220, 14837), (1604, 11285), (2005, 9028), (2257, 8020), (4010, 4514)]