90131840

素因数分解:

$2^7\times 5^1\times {\mathrm{140831}}^1$

素因数の和:140850

約数の個数: 32

約数和(自身を含む): 215472960

約数和(自身を除く): 125341120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 140831, 281662, 563324, 704155, 1126648, 1408310, 2253296, 2816620, 4506592, 5633240, 9013184, 11266480, 18026368, 22532960, 45065920, 90131840]

約数ペア:

[(1, 90131840), (2, 45065920), (4, 22532960), (5, 18026368), (8, 11266480), (10, 9013184), (16, 5633240), (20, 4506592), (32, 2816620), (40, 2253296), (64, 1408310), (80, 1126648), (128, 704155), (160, 563324), (320, 281662), (640, 140831)]