28319904

素因数分解:

$2^5\times 3^2\times {\mathrm{107}}^1\times {\mathrm{919}}^1$

素因数の和:1042

約数の個数: 72

約数和(自身を含む): 81375840

約数和(自身を除く): 53055936

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 107, 144, 214, 288, 321, 428, 642, 856, 919, 963, 1284, 1712, 1838, 1926, 2568, 2757, 3424, 3676, 3852, 5136, 5514, 7352, 7704, 8271, 10272, 11028, 14704, 15408, 16542, 22056, 29408, 30816, 33084, 44112, 66168, 88224, 98333, 132336, 196666, 264672, 294999, 393332, 589998, 786664, 884997, 1179996, 1573328, 1769994, 2359992, 3146656, 3539988, 4719984, 7079976, 9439968, 14159952, 28319904]

約数ペア:

[(1, 28319904), (2, 14159952), (3, 9439968), (4, 7079976), (6, 4719984), (8, 3539988), (9, 3146656), (12, 2359992), (16, 1769994), (18, 1573328), (24, 1179996), (32, 884997), (36, 786664), (48, 589998), (72, 393332), (96, 294999), (107, 264672), (144, 196666), (214, 132336), (288, 98333), (321, 88224), (428, 66168), (642, 44112), (856, 33084), (919, 30816), (963, 29408), (1284, 22056), (1712, 16542), (1838, 15408), (1926, 14704), (2568, 11028), (2757, 10272), (3424, 8271), (3676, 7704), (3852, 7352), (5136, 5514)]