31388880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{130787}}^1$

素因数の和:130803

約数の個数: 40

約数和(自身を含む): 97306272

約数和(自身を除く): 65917392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 130787, 261574, 392361, 523148, 653935, 784722, 1046296, 1307870, 1569444, 1961805, 2092592, 2615740, 3138888, 3923610, 5231480, 6277776, 7847220, 10462960, 15694440, 31388880]

約数ペア:

[(1, 31388880), (2, 15694440), (3, 10462960), (4, 7847220), (5, 6277776), (6, 5231480), (8, 3923610), (10, 3138888), (12, 2615740), (15, 2092592), (16, 1961805), (20, 1569444), (24, 1307870), (30, 1046296), (40, 784722), (48, 653935), (60, 523148), (80, 392361), (120, 261574), (240, 130787)]