18748155

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{419}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 31852800

約数和(自身を除く): 13104645

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 419, 471, 785, 1257, 2095, 2355, 2983, 6285, 7961, 8949, 14915, 23883, 39805, 44745, 65783, 119415, 197349, 328915, 986745, 1249877, 3749631, 6249385, 18748155]

約数ペア:

[(1, 18748155), (3, 6249385), (5, 3749631), (15, 1249877), (19, 986745), (57, 328915), (95, 197349), (157, 119415), (285, 65783), (419, 44745), (471, 39805), (785, 23883), (1257, 14915), (2095, 8949), (2355, 7961), (2983, 6285)]