19649800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5171}}^1$

素因数の和:5206

約数の個数: 48

約数和(自身を含む): 48099600

約数和(自身を除く): 28449800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5171, 10342, 20684, 25855, 41368, 51710, 98249, 103420, 129275, 196498, 206840, 258550, 392996, 491245, 517100, 785992, 982490, 1034200, 1964980, 2456225, 3929960, 4912450, 9824900, 19649800]

約数ペア:

[(1, 19649800), (2, 9824900), (4, 4912450), (5, 3929960), (8, 2456225), (10, 1964980), (19, 1034200), (20, 982490), (25, 785992), (38, 517100), (40, 491245), (50, 392996), (76, 258550), (95, 206840), (100, 196498), (152, 129275), (190, 103420), (200, 98249), (380, 51710), (475, 41368), (760, 25855), (950, 20684), (1900, 10342), (3800, 5171)]