20205435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 35366400

約数和(自身を除く): 15160965

約数列:

[1, 3, 5, 15, 17, 51, 59, 79, 85, 177, 237, 255, 289, 295, 395, 867, 885, 1003, 1185, 1343, 1445, 3009, 4029, 4335, 4661, 5015, 6715, 13983, 15045, 17051, 20145, 22831, 23305, 51153, 68493, 69915, 79237, 85255, 114155, 237711, 255765, 342465, 396185, 1188555, 1347029, 4041087, 6735145, 20205435]

約数ペア:

[(1, 20205435), (3, 6735145), (5, 4041087), (15, 1347029), (17, 1188555), (51, 396185), (59, 342465), (79, 255765), (85, 237711), (177, 114155), (237, 85255), (255, 79237), (289, 69915), (295, 68493), (395, 51153), (867, 23305), (885, 22831), (1003, 20145), (1185, 17051), (1343, 15045), (1445, 13983), (3009, 6715), (4029, 5015), (4335, 4661)]