80676388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 157426416

約数和(自身を除く): 76750028

約数列:

[1, 2, 4, 13, 26, 52, 53, 73, 106, 146, 212, 292, 401, 689, 802, 949, 1378, 1604, 1898, 2756, 3796, 3869, 5213, 7738, 10426, 15476, 20852, 21253, 29273, 42506, 50297, 58546, 85012, 100594, 117092, 201188, 276289, 380549, 552578, 761098, 1105156, 1522196, 1551469, 3102938, 6205876, 20169097, 40338194, 80676388]

約数ペア:

[(1, 80676388), (2, 40338194), (4, 20169097), (13, 6205876), (26, 3102938), (52, 1551469), (53, 1522196), (73, 1105156), (106, 761098), (146, 552578), (212, 380549), (292, 276289), (401, 201188), (689, 117092), (802, 100594), (949, 85012), (1378, 58546), (1604, 50297), (1898, 42506), (2756, 29273), (3796, 21253), (3869, 20852), (5213, 15476), (7738, 10426)]