20783429600

素因数分解:

$2^5\times 5^2\times {\mathrm{1579}}^1\times {\mathrm{16453}}^1$

素因数の和:18052

約数の個数: 72

約数和(自身を含む): 50772765960

約数和(自身を除く): 29989336360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 1579, 3158, 6316, 7895, 12632, 15790, 16453, 25264, 31580, 32906, 39475, 50528, 63160, 65812, 78950, 82265, 126320, 131624, 157900, 164530, 252640, 263248, 315800, 329060, 411325, 526496, 631600, 658120, 822650, 1263200, 1316240, 1645300, 2632480, 3290600, 6581200, 13162400, 25979287, 51958574, 103917148, 129896435, 207834296, 259792870, 415668592, 519585740, 649482175, 831337184, 1039171480, 1298964350, 2078342960, 2597928700, 4156685920, 5195857400, 10391714800, 20783429600]

約数ペア:

[(1, 20783429600), (2, 10391714800), (4, 5195857400), (5, 4156685920), (8, 2597928700), (10, 2078342960), (16, 1298964350), (20, 1039171480), (25, 831337184), (32, 649482175), (40, 519585740), (50, 415668592), (80, 259792870), (100, 207834296), (160, 129896435), (200, 103917148), (400, 51958574), (800, 25979287), (1579, 13162400), (3158, 6581200), (6316, 3290600), (7895, 2632480), (12632, 1645300), (15790, 1316240), (16453, 1263200), (25264, 822650), (31580, 658120), (32906, 631600), (39475, 526496), (50528, 411325), (63160, 329060), (65812, 315800), (78950, 263248), (82265, 252640), (126320, 164530), (131624, 157900)]