19564400

素因数分解:

$2^4\times 5^2\times {\mathrm{59}}^1\times {\mathrm{829}}^1$

素因数の和:906

約数の個数: 60

約数和(自身を含む): 47857800

約数和(自身を除く): 28293400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 59, 80, 100, 118, 200, 236, 295, 400, 472, 590, 829, 944, 1180, 1475, 1658, 2360, 2950, 3316, 4145, 4720, 5900, 6632, 8290, 11800, 13264, 16580, 20725, 23600, 33160, 41450, 48911, 66320, 82900, 97822, 165800, 195644, 244555, 331600, 391288, 489110, 782576, 978220, 1222775, 1956440, 2445550, 3912880, 4891100, 9782200, 19564400]

約数ペア:

[(1, 19564400), (2, 9782200), (4, 4891100), (5, 3912880), (8, 2445550), (10, 1956440), (16, 1222775), (20, 978220), (25, 782576), (40, 489110), (50, 391288), (59, 331600), (80, 244555), (100, 195644), (118, 165800), (200, 97822), (236, 82900), (295, 66320), (400, 48911), (472, 41450), (590, 33160), (829, 23600), (944, 20725), (1180, 16580), (1475, 13264), (1658, 11800), (2360, 8290), (2950, 6632), (3316, 5900), (4145, 4720)]