20559500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{3163}}^1$

素因数の和:3195

約数の個数: 48

約数和(自身を含む): 48371232

約数和(自身を除く): 27811732

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3163, 3250, 6326, 6500, 12652, 15815, 31630, 41119, 63260, 79075, 82238, 158150, 164476, 205595, 316300, 395375, 411190, 790750, 822380, 1027975, 1581500, 2055950, 4111900, 5139875, 10279750, 20559500]

約数ペア:

[(1, 20559500), (2, 10279750), (4, 5139875), (5, 4111900), (10, 2055950), (13, 1581500), (20, 1027975), (25, 822380), (26, 790750), (50, 411190), (52, 395375), (65, 316300), (100, 205595), (125, 164476), (130, 158150), (250, 82238), (260, 79075), (325, 63260), (500, 41119), (650, 31630), (1300, 15815), (1625, 12652), (3163, 6500), (3250, 6326)]