263208920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{506171}}^1$

素因数の和:506195

約数の個数: 32

約数和(自身を含む): 637776720

約数和(自身を除く): 374567800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 506171, 1012342, 2024684, 2530855, 4049368, 5061710, 6580223, 10123420, 13160446, 20246840, 26320892, 32901115, 52641784, 65802230, 131604460, 263208920]

約数ペア:

[(1, 263208920), (2, 131604460), (4, 65802230), (5, 52641784), (8, 32901115), (10, 26320892), (13, 20246840), (20, 13160446), (26, 10123420), (40, 6580223), (52, 5061710), (65, 4049368), (104, 2530855), (130, 2024684), (260, 1012342), (520, 506171)]