388987600

素因数分解:

$2^4\times 5^2\times {\mathrm{972469}}^1$

素因数の和:972487

約数の個数: 30

約数和(自身を含む): 934543670

約数和(自身を除く): 545556070

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 972469, 1944938, 3889876, 4862345, 7779752, 9724690, 15559504, 19449380, 24311725, 38898760, 48623450, 77797520, 97246900, 194493800, 388987600]

約数ペア:

[(1, 388987600), (2, 194493800), (4, 97246900), (5, 77797520), (8, 48623450), (10, 38898760), (16, 24311725), (20, 19449380), (25, 15559504), (40, 9724690), (50, 7779752), (80, 4862345), (100, 3889876), (200, 1944938), (400, 972469)]