28678920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{238991}}^1$

素因数の和:239005

約数の個数: 32

約数和(自身を含む): 86037120

約数和(自身を除く): 57358200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 238991, 477982, 716973, 955964, 1194955, 1433946, 1911928, 2389910, 2867892, 3584865, 4779820, 5735784, 7169730, 9559640, 14339460, 28678920]

約数ペア:

[(1, 28678920), (2, 14339460), (3, 9559640), (4, 7169730), (5, 5735784), (6, 4779820), (8, 3584865), (10, 2867892), (12, 2389910), (15, 1911928), (20, 1433946), (24, 1194955), (30, 955964), (40, 716973), (60, 477982), (120, 238991)]