19438820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57173}}^1$

素因数の和:57199

約数の個数: 24

約数和(自身を含む): 43223544

約数和(自身を除く): 23784724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 57173, 114346, 228692, 285865, 571730, 971941, 1143460, 1943882, 3887764, 4859705, 9719410, 19438820]

約数ペア:

[(1, 19438820), (2, 9719410), (4, 4859705), (5, 3887764), (10, 1943882), (17, 1143460), (20, 971941), (34, 571730), (68, 285865), (85, 228692), (170, 114346), (340, 57173)]