21000565400

素因数分解:

$2^3\times 5^2\times {\mathrm{619}}^1\times {\mathrm{169633}}^1$

素因数の和:170268

約数の個数: 48

約数和(自身を含む): 48905482200

約数和(自身を除く): 27904916800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 619, 1238, 2476, 3095, 4952, 6190, 12380, 15475, 24760, 30950, 61900, 123800, 169633, 339266, 678532, 848165, 1357064, 1696330, 3392660, 4240825, 6785320, 8481650, 16963300, 33926600, 105002827, 210005654, 420011308, 525014135, 840022616, 1050028270, 2100056540, 2625070675, 4200113080, 5250141350, 10500282700, 21000565400]

約数ペア:

[(1, 21000565400), (2, 10500282700), (4, 5250141350), (5, 4200113080), (8, 2625070675), (10, 2100056540), (20, 1050028270), (25, 840022616), (40, 525014135), (50, 420011308), (100, 210005654), (200, 105002827), (619, 33926600), (1238, 16963300), (2476, 8481650), (3095, 6785320), (4952, 4240825), (6190, 3392660), (12380, 1696330), (15475, 1357064), (24760, 848165), (30950, 678532), (61900, 339266), (123800, 169633)]