25032020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2239}}^1$

素因数の和:2304

約数の個数: 48

約数和(自身を含む): 57953280

約数和(自身を除く): 32921260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2239, 2795, 4478, 5590, 8956, 11180, 11195, 22390, 29107, 44780, 58214, 96277, 116428, 145535, 192554, 291070, 385108, 481385, 582140, 962770, 1251601, 1925540, 2503202, 5006404, 6258005, 12516010, 25032020]

約数ペア:

[(1, 25032020), (2, 12516010), (4, 6258005), (5, 5006404), (10, 2503202), (13, 1925540), (20, 1251601), (26, 962770), (43, 582140), (52, 481385), (65, 385108), (86, 291070), (130, 192554), (172, 145535), (215, 116428), (260, 96277), (430, 58214), (559, 44780), (860, 29107), (1118, 22390), (2236, 11195), (2239, 11180), (2795, 8956), (4478, 5590)]