20803400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:159

約数の個数: 96

約数和(自身を含む): 51559200

約数和(自身を除く): 30755800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 43, 50, 59, 82, 86, 100, 118, 164, 172, 200, 205, 215, 236, 295, 328, 344, 410, 430, 472, 590, 820, 860, 1025, 1075, 1180, 1475, 1640, 1720, 1763, 2050, 2150, 2360, 2419, 2537, 2950, 3526, 4100, 4300, 4838, 5074, 5900, 7052, 8200, 8600, 8815, 9676, 10148, 11800, 12095, 12685, 14104, 17630, 19352, 20296, 24190, 25370, 35260, 44075, 48380, 50740, 60475, 63425, 70520, 88150, 96760, 101480, 104017, 120950, 126850, 176300, 208034, 241900, 253700, 352600, 416068, 483800, 507400, 520085, 832136, 1040170, 2080340, 2600425, 4160680, 5200850, 10401700, 20803400]

約数ペア:

[(1, 20803400), (2, 10401700), (4, 5200850), (5, 4160680), (8, 2600425), (10, 2080340), (20, 1040170), (25, 832136), (40, 520085), (41, 507400), (43, 483800), (50, 416068), (59, 352600), (82, 253700), (86, 241900), (100, 208034), (118, 176300), (164, 126850), (172, 120950), (200, 104017), (205, 101480), (215, 96760), (236, 88150), (295, 70520), (328, 63425), (344, 60475), (410, 50740), (430, 48380), (472, 44075), (590, 35260), (820, 25370), (860, 24190), (1025, 20296), (1075, 19352), (1180, 17630), (1475, 14104), (1640, 12685), (1720, 12095), (1763, 11800), (2050, 10148), (2150, 9676), (2360, 8815), (2419, 8600), (2537, 8200), (2950, 7052), (3526, 5900), (4100, 5074), (4300, 4838)]