215413900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{165703}}^1$

素因数の和:165730

約数の個数: 36

約数和(自身を含む): 503408752

約数和(自身を除く): 287994852

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 165703, 331406, 662812, 828515, 1657030, 2154139, 3314060, 4142575, 4308278, 8285150, 8616556, 10770695, 16570300, 21541390, 43082780, 53853475, 107706950, 215413900]

約数ペア:

[(1, 215413900), (2, 107706950), (4, 53853475), (5, 43082780), (10, 21541390), (13, 16570300), (20, 10770695), (25, 8616556), (26, 8285150), (50, 4308278), (52, 4142575), (65, 3314060), (100, 2154139), (130, 1657030), (260, 828515), (325, 662812), (650, 331406), (1300, 165703)]