81787095

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{557}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 153552672

約数和(自身を除く): 71765577

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 251, 557, 585, 753, 1255, 1671, 2259, 2785, 3263, 3765, 5013, 7241, 8355, 9789, 11295, 16315, 21723, 25065, 29367, 36205, 48945, 65169, 108615, 139807, 146835, 325845, 419421, 699035, 1258263, 1817491, 2097105, 5452473, 6291315, 9087455, 16357419, 27262365, 81787095]

約数ペア:

[(1, 81787095), (3, 27262365), (5, 16357419), (9, 9087455), (13, 6291315), (15, 5452473), (39, 2097105), (45, 1817491), (65, 1258263), (117, 699035), (195, 419421), (251, 325845), (557, 146835), (585, 139807), (753, 108615), (1255, 65169), (1671, 48945), (2259, 36205), (2785, 29367), (3263, 25065), (3765, 21723), (5013, 16315), (7241, 11295), (8355, 9789)]