30386320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{19991}}^1$

素因数の和:20023

約数の個数: 40

約数和(自身を含む): 74370240

約数和(自身を除く): 43983920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 19991, 39982, 79964, 99955, 159928, 199910, 319856, 379829, 399820, 759658, 799640, 1519316, 1599280, 1899145, 3038632, 3798290, 6077264, 7596580, 15193160, 30386320]

約数ペア:

[(1, 30386320), (2, 15193160), (4, 7596580), (5, 6077264), (8, 3798290), (10, 3038632), (16, 1899145), (19, 1599280), (20, 1519316), (38, 799640), (40, 759658), (76, 399820), (80, 379829), (95, 319856), (152, 199910), (190, 159928), (304, 99955), (380, 79964), (760, 39982), (1520, 19991)]