30391640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{39989}}^1$

素因数の和:40019

約数の個数: 32

約数和(自身を含む): 71982000

約数和(自身を除く): 41590360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 39989, 79978, 159956, 199945, 319912, 399890, 759791, 799780, 1519582, 1599560, 3039164, 3798955, 6078328, 7597910, 15195820, 30391640]

約数ペア:

[(1, 30391640), (2, 15195820), (4, 7597910), (5, 6078328), (8, 3798955), (10, 3039164), (19, 1599560), (20, 1519582), (38, 799780), (40, 759791), (76, 399890), (95, 319912), (152, 199945), (190, 159956), (380, 79978), (760, 39989)]