20295440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23063}}^1$

素因数の和:23087

約数の個数: 40

約数和(自身を含む): 51478848

約数和(自身を除く): 31183408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23063, 46126, 92252, 115315, 184504, 230630, 253693, 369008, 461260, 507386, 922520, 1014772, 1268465, 1845040, 2029544, 2536930, 4059088, 5073860, 10147720, 20295440]

約数ペア:

[(1, 20295440), (2, 10147720), (4, 5073860), (5, 4059088), (8, 2536930), (10, 2029544), (11, 1845040), (16, 1268465), (20, 1014772), (22, 922520), (40, 507386), (44, 461260), (55, 369008), (80, 253693), (88, 230630), (110, 184504), (176, 115315), (220, 92252), (440, 46126), (880, 23063)]