20138646500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{140339}}^1$

素因数の和:140406

約数の個数: 96

約数和(自身を含む): 51492430080

約数和(自身を除く): 31353783580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 125, 140, 164, 175, 205, 250, 287, 350, 410, 500, 574, 700, 820, 875, 1025, 1148, 1435, 1750, 2050, 2870, 3500, 4100, 5125, 5740, 7175, 10250, 14350, 20500, 28700, 35875, 71750, 140339, 143500, 280678, 561356, 701695, 982373, 1403390, 1964746, 2806780, 3508475, 3929492, 4911865, 5753899, 7016950, 9823730, 11507798, 14033900, 17542375, 19647460, 23015596, 24559325, 28769495, 35084750, 40277293, 49118650, 57538990, 70169500, 80554586, 98237300, 115077980, 122796625, 143847475, 161109172, 201386465, 245593250, 287694950, 402772930, 491186500, 575389900, 719237375, 805545860, 1006932325, 1438474750, 2013864650, 2876949500, 4027729300, 5034661625, 10069323250, 20138646500]

約数ペア:

[(1, 20138646500), (2, 10069323250), (4, 5034661625), (5, 4027729300), (7, 2876949500), (10, 2013864650), (14, 1438474750), (20, 1006932325), (25, 805545860), (28, 719237375), (35, 575389900), (41, 491186500), (50, 402772930), (70, 287694950), (82, 245593250), (100, 201386465), (125, 161109172), (140, 143847475), (164, 122796625), (175, 115077980), (205, 98237300), (250, 80554586), (287, 70169500), (350, 57538990), (410, 49118650), (500, 40277293), (574, 35084750), (700, 28769495), (820, 24559325), (875, 23015596), (1025, 19647460), (1148, 17542375), (1435, 14033900), (1750, 11507798), (2050, 9823730), (2870, 7016950), (3500, 5753899), (4100, 4911865), (5125, 3929492), (5740, 3508475), (7175, 2806780), (10250, 1964746), (14350, 1403390), (20500, 982373), (28700, 701695), (35875, 561356), (71750, 280678), (140339, 143500)]