13482220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 29560608

約数和(自身を除く): 16078388

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 257, 305, 430, 514, 610, 860, 1028, 1220, 1285, 2570, 2623, 5140, 5246, 10492, 11051, 13115, 15677, 22102, 26230, 31354, 44204, 52460, 55255, 62708, 78385, 110510, 156770, 221020, 313540, 674111, 1348222, 2696444, 3370555, 6741110, 13482220]

約数ペア:

[(1, 13482220), (2, 6741110), (4, 3370555), (5, 2696444), (10, 1348222), (20, 674111), (43, 313540), (61, 221020), (86, 156770), (122, 110510), (172, 78385), (215, 62708), (244, 55255), (257, 52460), (305, 44204), (430, 31354), (514, 26230), (610, 22102), (860, 15677), (1028, 13115), (1220, 11051), (1285, 10492), (2570, 5246), (2623, 5140)]