1991960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2651

約数の個数: 32

約数和(自身を含む): 4719600

約数和(自身を除く): 2727640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 2621, 5242, 10484, 13105, 20968, 26210, 49799, 52420, 99598, 104840, 199196, 248995, 398392, 497990, 995980, 1991960]

約数ペア:

[(1, 1991960), (2, 995980), (4, 497990), (5, 398392), (8, 248995), (10, 199196), (19, 104840), (20, 99598), (38, 52420), (40, 49799), (76, 26210), (95, 20968), (152, 13105), (190, 10484), (380, 5242), (760, 2621)]