20065400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{2447}}^1$

素因数の和:2504

約数の個数: 48

約数和(自身を含む): 47809440

約数和(自身を除く): 27744040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 2447, 4100, 4894, 8200, 9788, 12235, 19576, 24470, 48940, 61175, 97880, 100327, 122350, 200654, 244700, 401308, 489400, 501635, 802616, 1003270, 2006540, 2508175, 4013080, 5016350, 10032700, 20065400]

約数ペア:

[(1, 20065400), (2, 10032700), (4, 5016350), (5, 4013080), (8, 2508175), (10, 2006540), (20, 1003270), (25, 802616), (40, 501635), (41, 489400), (50, 401308), (82, 244700), (100, 200654), (164, 122350), (200, 100327), (205, 97880), (328, 61175), (410, 48940), (820, 24470), (1025, 19576), (1640, 12235), (2050, 9788), (2447, 8200), (4100, 4894)]