19950080

素因数分解:

$2^9\times 5^1\times {\mathrm{7793}}^1$

素因数の和:7816

約数の個数: 40

約数和(自身を含む): 47839572

約数和(自身を除く): 27889492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7793, 15586, 31172, 38965, 62344, 77930, 124688, 155860, 249376, 311720, 498752, 623440, 997504, 1246880, 1995008, 2493760, 3990016, 4987520, 9975040, 19950080]

約数ペア:

[(1, 19950080), (2, 9975040), (4, 4987520), (5, 3990016), (8, 2493760), (10, 1995008), (16, 1246880), (20, 997504), (32, 623440), (40, 498752), (64, 311720), (80, 249376), (128, 155860), (160, 124688), (256, 77930), (320, 62344), (512, 38965), (640, 31172), (1280, 15586), (2560, 7793)]