64192780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 139426560

約数和(自身を除く): 75233780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 223, 370, 389, 446, 740, 778, 892, 1115, 1556, 1945, 2230, 3890, 4460, 7780, 8251, 14393, 16502, 28786, 33004, 41255, 57572, 71965, 82510, 86747, 143930, 165020, 173494, 287860, 346988, 433735, 867470, 1734940, 3209639, 6419278, 12838556, 16048195, 32096390, 64192780]

約数ペア:

[(1, 64192780), (2, 32096390), (4, 16048195), (5, 12838556), (10, 6419278), (20, 3209639), (37, 1734940), (74, 867470), (148, 433735), (185, 346988), (223, 287860), (370, 173494), (389, 165020), (446, 143930), (740, 86747), (778, 82510), (892, 71965), (1115, 57572), (1556, 41255), (1945, 33004), (2230, 28786), (3890, 16502), (4460, 14393), (7780, 8251)]