78164720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26407}}^1$

素因数の和:26457

約数の個数: 40

約数和(自身を含む): 186651744

約数和(自身を除く): 108487024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 26407, 52814, 105628, 132035, 211256, 264070, 422512, 528140, 977059, 1056280, 1954118, 2112560, 3908236, 4885295, 7816472, 9770590, 15632944, 19541180, 39082360, 78164720]

約数ペア:

[(1, 78164720), (2, 39082360), (4, 19541180), (5, 15632944), (8, 9770590), (10, 7816472), (16, 4885295), (20, 3908236), (37, 2112560), (40, 1954118), (74, 1056280), (80, 977059), (148, 528140), (185, 422512), (296, 264070), (370, 211256), (592, 132035), (740, 105628), (1480, 52814), (2960, 26407)]