15855540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{659}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 44573760

約数和(自身を除く): 28718220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 659, 802, 1203, 1318, 1604, 1977, 2005, 2406, 2636, 3295, 3954, 4010, 4812, 6015, 6590, 7908, 8020, 9885, 12030, 13180, 19770, 24060, 39540, 264259, 528518, 792777, 1057036, 1321295, 1585554, 2642590, 3171108, 3963885, 5285180, 7927770, 15855540]

約数ペア:

[(1, 15855540), (2, 7927770), (3, 5285180), (4, 3963885), (5, 3171108), (6, 2642590), (10, 1585554), (12, 1321295), (15, 1057036), (20, 792777), (30, 528518), (60, 264259), (401, 39540), (659, 24060), (802, 19770), (1203, 13180), (1318, 12030), (1604, 9885), (1977, 8020), (2005, 7908), (2406, 6590), (2636, 6015), (3295, 4812), (3954, 4010)]