21541170040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{214639}}^1$

素因数の和:214856

約数の個数: 64

約数和(自身を含む): 52466601600

約数和(自身を除く): 30925431560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 772, 965, 1544, 1930, 2509, 3860, 5018, 7720, 10036, 12545, 20072, 25090, 50180, 100360, 214639, 429278, 858556, 1073195, 1717112, 2146390, 2790307, 4292780, 5580614, 8585560, 11161228, 13951535, 22322456, 27903070, 41425327, 55806140, 82850654, 111612280, 165701308, 207126635, 331402616, 414253270, 538529251, 828506540, 1077058502, 1657013080, 2154117004, 2692646255, 4308234008, 5385292510, 10770585020, 21541170040]

約数ペア:

[(1, 21541170040), (2, 10770585020), (4, 5385292510), (5, 4308234008), (8, 2692646255), (10, 2154117004), (13, 1657013080), (20, 1077058502), (26, 828506540), (40, 538529251), (52, 414253270), (65, 331402616), (104, 207126635), (130, 165701308), (193, 111612280), (260, 82850654), (386, 55806140), (520, 41425327), (772, 27903070), (965, 22322456), (1544, 13951535), (1930, 11161228), (2509, 8585560), (3860, 5580614), (5018, 4292780), (7720, 2790307), (10036, 2146390), (12545, 1717112), (20072, 1073195), (25090, 858556), (50180, 429278), (100360, 214639)]