201520540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{775079}}^1$

素因数の和:775101

約数の個数: 24

約数和(自身を含む): 455747040

約数和(自身を除く): 254226500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 775079, 1550158, 3100316, 3875395, 7750790, 10076027, 15501580, 20152054, 40304108, 50380135, 100760270, 201520540]

約数ペア:

[(1, 201520540), (2, 100760270), (4, 50380135), (5, 40304108), (10, 20152054), (13, 15501580), (20, 10076027), (26, 7750790), (52, 3875395), (65, 3100316), (130, 1550158), (260, 775079)]