78882980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{367}}^1\times {\mathrm{977}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 181391616

約数和(自身を除く): 102508636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 367, 734, 977, 1468, 1835, 1954, 3670, 3908, 4037, 4885, 7340, 8074, 9770, 10747, 16148, 19540, 20185, 21494, 40370, 42988, 53735, 80740, 107470, 214940, 358559, 717118, 1434236, 1792795, 3585590, 3944149, 7171180, 7888298, 15776596, 19720745, 39441490, 78882980]

約数ペア:

[(1, 78882980), (2, 39441490), (4, 19720745), (5, 15776596), (10, 7888298), (11, 7171180), (20, 3944149), (22, 3585590), (44, 1792795), (55, 1434236), (110, 717118), (220, 358559), (367, 214940), (734, 107470), (977, 80740), (1468, 53735), (1835, 42988), (1954, 40370), (3670, 21494), (3908, 20185), (4037, 19540), (4885, 16148), (7340, 10747), (8074, 9770)]