30906160

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20333}}^1$

素因数の和:20365

約数の個数: 40

約数和(自身を含む): 75642480

約数和(自身を除く): 44736320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20333, 40666, 81332, 101665, 162664, 203330, 325328, 386327, 406660, 772654, 813320, 1545308, 1626640, 1931635, 3090616, 3863270, 6181232, 7726540, 15453080, 30906160]

約数ペア:

[(1, 30906160), (2, 15453080), (4, 7726540), (5, 6181232), (8, 3863270), (10, 3090616), (16, 1931635), (19, 1626640), (20, 1545308), (38, 813320), (40, 772654), (76, 406660), (80, 386327), (95, 325328), (152, 203330), (190, 162664), (304, 101665), (380, 81332), (760, 40666), (1520, 20333)]