80170280

素因数分解:

$2^3\times 5^1\times {\mathrm{1051}}^1\times {\mathrm{1907}}^1$

素因数の和:2969

約数の個数: 32

約数和(自身を含む): 180649440

約数和(自身を除く): 100479160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1051, 1907, 2102, 3814, 4204, 5255, 7628, 8408, 9535, 10510, 15256, 19070, 21020, 38140, 42040, 76280, 2004257, 4008514, 8017028, 10021285, 16034056, 20042570, 40085140, 80170280]

約数ペア:

[(1, 80170280), (2, 40085140), (4, 20042570), (5, 16034056), (8, 10021285), (10, 8017028), (20, 4008514), (40, 2004257), (1051, 76280), (1907, 42040), (2102, 38140), (3814, 21020), (4204, 19070), (5255, 15256), (7628, 10510), (8408, 9535)]