20131618400

素因数分解:

$2^5\times 5^2\times {\mathrm{1579}}^1\times {\mathrm{15937}}^1$

素因数の和:17536

約数の個数: 72

約数和(自身を含む): 49180524120

約数和(自身を除く): 29048905720

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, 15937, 25264, 31580, 31874, 39475, 50528, 63160, 63748, 78950, 79685, 126320, 127496, 157900, 159370, 252640, 254992, 315800, 318740, 398425, 509984, 631600, 637480, 796850, 1263200, 1274960, 1593700, 2549920, 3187400, 6374800, 12749600, 25164523, 50329046, 100658092, 125822615, 201316184, 251645230, 402632368, 503290460, 629113075, 805264736, 1006580920, 1258226150, 2013161840, 2516452300, 4026323680, 5032904600, 10065809200, 20131618400]

約数ペア:

[(1, 20131618400), (2, 10065809200), (4, 5032904600), (5, 4026323680), (8, 2516452300), (10, 2013161840), (16, 1258226150), (20, 1006580920), (25, 805264736), (32, 629113075), (40, 503290460), (50, 402632368), (80, 251645230), (100, 201316184), (160, 125822615), (200, 100658092), (400, 50329046), (800, 25164523), (1579, 12749600), (3158, 6374800), (6316, 3187400), (7895, 2549920), (12632, 1593700), (15790, 1274960), (15937, 1263200), (25264, 796850), (31580, 637480), (31874, 631600), (39475, 509984), (50528, 398425), (63160, 318740), (63748, 315800), (78950, 254992), (79685, 252640), (126320, 159370), (127496, 157900)]