257577980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{751}}^1\times {\mathrm{1559}}^1$

素因数の和:2330

約数の個数: 48

約数和(自身を含む): 591252480

約数和(自身を除く): 333674500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 751, 1502, 1559, 3004, 3118, 3755, 6236, 7510, 7795, 8261, 15020, 15590, 16522, 17149, 31180, 33044, 34298, 41305, 68596, 82610, 85745, 165220, 171490, 342980, 1170809, 2341618, 4683236, 5854045, 11708090, 12878899, 23416180, 25757798, 51515596, 64394495, 128788990, 257577980]

約数ペア:

[(1, 257577980), (2, 128788990), (4, 64394495), (5, 51515596), (10, 25757798), (11, 23416180), (20, 12878899), (22, 11708090), (44, 5854045), (55, 4683236), (110, 2341618), (220, 1170809), (751, 342980), (1502, 171490), (1559, 165220), (3004, 85745), (3118, 82610), (3755, 68596), (6236, 41305), (7510, 34298), (7795, 33044), (8261, 31180), (15020, 17149), (15590, 16522)]