20831200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2036

約数の個数: 72

約数和(自身を含む): 54793368

約数和(自身を除く): 33962168

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2003, 2080, 2600, 4006, 5200, 8012, 10015, 10400, 16024, 20030, 26039, 32048, 40060, 50075, 52078, 64096, 80120, 100150, 104156, 130195, 160240, 200300, 208312, 260390, 320480, 400600, 416624, 520780, 650975, 801200, 833248, 1041560, 1301950, 1602400, 2083120, 2603900, 4166240, 5207800, 10415600, 20831200]

約数ペア:

[(1, 20831200), (2, 10415600), (4, 5207800), (5, 4166240), (8, 2603900), (10, 2083120), (13, 1602400), (16, 1301950), (20, 1041560), (25, 833248), (26, 801200), (32, 650975), (40, 520780), (50, 416624), (52, 400600), (65, 320480), (80, 260390), (100, 208312), (104, 200300), (130, 160240), (160, 130195), (200, 104156), (208, 100150), (260, 80120), (325, 64096), (400, 52078), (416, 50075), (520, 40060), (650, 32048), (800, 26039), (1040, 20030), (1300, 16024), (2003, 10400), (2080, 10015), (2600, 8012), (4006, 5200)]