19718410

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 36812880

約数和(自身を除く): 17094470

約数列:

[1, 2, 5, 10, 37, 74, 137, 185, 274, 370, 389, 685, 778, 1370, 1945, 3890, 5069, 10138, 14393, 25345, 28786, 50690, 53293, 71965, 106586, 143930, 266465, 532930, 1971841, 3943682, 9859205, 19718410]

約数ペア:

[(1, 19718410), (2, 9859205), (5, 3943682), (10, 1971841), (37, 532930), (74, 266465), (137, 143930), (185, 106586), (274, 71965), (370, 53293), (389, 50690), (685, 28786), (778, 25345), (1370, 14393), (1945, 10138), (3890, 5069)]