1288136980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1223}}^1\times {\mathrm{4051}}^1$

素因数の和:5296

約数の個数: 48

約数和(自身を含む): 2916273024

約数和(自身を除く): 1628136044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1223, 2446, 4051, 4892, 6115, 8102, 12230, 15899, 16204, 20255, 24460, 31798, 40510, 52663, 63596, 79495, 81020, 105326, 158990, 210652, 263315, 317980, 526630, 1053260, 4954373, 9908746, 19817492, 24771865, 49543730, 64406849, 99087460, 128813698, 257627396, 322034245, 644068490, 1288136980]

約数ペア:

[(1, 1288136980), (2, 644068490), (4, 322034245), (5, 257627396), (10, 128813698), (13, 99087460), (20, 64406849), (26, 49543730), (52, 24771865), (65, 19817492), (130, 9908746), (260, 4954373), (1223, 1053260), (2446, 526630), (4051, 317980), (4892, 263315), (6115, 210652), (8102, 158990), (12230, 105326), (15899, 81020), (16204, 79495), (20255, 63596), (24460, 52663), (31798, 40510)]