20277200

素因数分解:

$2^4\times 5^2\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 60

約数和(自身を含む): 49172448

約数和(自身を除く): 28895248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 163, 200, 311, 326, 400, 622, 652, 815, 1244, 1304, 1555, 1630, 2488, 2608, 3110, 3260, 4075, 4976, 6220, 6520, 7775, 8150, 12440, 13040, 15550, 16300, 24880, 31100, 32600, 50693, 62200, 65200, 101386, 124400, 202772, 253465, 405544, 506930, 811088, 1013860, 1267325, 2027720, 2534650, 4055440, 5069300, 10138600, 20277200]

約数ペア:

[(1, 20277200), (2, 10138600), (4, 5069300), (5, 4055440), (8, 2534650), (10, 2027720), (16, 1267325), (20, 1013860), (25, 811088), (40, 506930), (50, 405544), (80, 253465), (100, 202772), (163, 124400), (200, 101386), (311, 65200), (326, 62200), (400, 50693), (622, 32600), (652, 31100), (815, 24880), (1244, 16300), (1304, 15550), (1555, 13040), (1630, 12440), (2488, 8150), (2608, 7775), (3110, 6520), (3260, 6220), (4075, 4976)]