78866980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{541}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 171276336

約数和(自身を除く): 92409356

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 197, 370, 394, 541, 740, 788, 985, 1082, 1970, 2164, 2705, 3940, 5410, 7289, 10820, 14578, 20017, 29156, 36445, 40034, 72890, 80068, 100085, 106577, 145780, 200170, 213154, 400340, 426308, 532885, 1065770, 2131540, 3943349, 7886698, 15773396, 19716745, 39433490, 78866980]

約数ペア:

[(1, 78866980), (2, 39433490), (4, 19716745), (5, 15773396), (10, 7886698), (20, 3943349), (37, 2131540), (74, 1065770), (148, 532885), (185, 426308), (197, 400340), (370, 213154), (394, 200170), (541, 145780), (740, 106577), (788, 100085), (985, 80068), (1082, 72890), (1970, 40034), (2164, 36445), (2705, 29156), (3940, 20017), (5410, 14578), (7289, 10820)]