19501690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2239}}^1$

素因数の和:2326

約数の個数: 32

約数和(自身を含む): 38384640

約数和(自身を除く): 18882950

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2239, 4355, 4478, 8710, 11195, 22390, 29107, 58214, 145535, 150013, 291070, 300026, 750065, 1500130, 1950169, 3900338, 9750845, 19501690]

約数ペア:

[(1, 19501690), (2, 9750845), (5, 3900338), (10, 1950169), (13, 1500130), (26, 750065), (65, 300026), (67, 291070), (130, 150013), (134, 145535), (335, 58214), (670, 29107), (871, 22390), (1742, 11195), (2239, 8710), (4355, 4478)]