51065820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 169085280

約数和(自身を除く): 118019460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 139, 156, 157, 180, 195, 234, 260, 278, 314, 390, 417, 468, 471, 556, 585, 628, 695, 780, 785, 834, 942, 1170, 1251, 1390, 1413, 1570, 1668, 1807, 1884, 2041, 2085, 2340, 2355, 2502, 2780, 2826, 3140, 3614, 4082, 4170, 4710, 5004, 5421, 5652, 6123, 6255, 7065, 7228, 8164, 8340, 9035, 9420, 10205, 10842, 12246, 12510, 14130, 16263, 18070, 18369, 20410, 21684, 21823, 24492, 25020, 27105, 28260, 30615, 32526, 36140, 36738, 40820, 43646, 54210, 61230, 65052, 65469, 73476, 81315, 87292, 91845, 108420, 109115, 122460, 130938, 162630, 183690, 196407, 218230, 261876, 283699, 325260, 327345, 367380, 392814, 436460, 567398, 654690, 785628, 851097, 982035, 1134796, 1309380, 1418495, 1702194, 1964070, 2553291, 2836990, 3404388, 3928140, 4255485, 5106582, 5673980, 8510970, 10213164, 12766455, 17021940, 25532910, 51065820]

約数ペア:

[(1, 51065820), (2, 25532910), (3, 17021940), (4, 12766455), (5, 10213164), (6, 8510970), (9, 5673980), (10, 5106582), (12, 4255485), (13, 3928140), (15, 3404388), (18, 2836990), (20, 2553291), (26, 1964070), (30, 1702194), (36, 1418495), (39, 1309380), (45, 1134796), (52, 982035), (60, 851097), (65, 785628), (78, 654690), (90, 567398), (117, 436460), (130, 392814), (139, 367380), (156, 327345), (157, 325260), (180, 283699), (195, 261876), (234, 218230), (260, 196407), (278, 183690), (314, 162630), (390, 130938), (417, 122460), (468, 109115), (471, 108420), (556, 91845), (585, 87292), (628, 81315), (695, 73476), (780, 65469), (785, 65052), (834, 61230), (942, 54210), (1170, 43646), (1251, 40820), (1390, 36738), (1413, 36140), (1570, 32526), (1668, 30615), (1807, 28260), (1884, 27105), (2041, 25020), (2085, 24492), (2340, 21823), (2355, 21684), (2502, 20410), (2780, 18369), (2826, 18070), (3140, 16263), (3614, 14130), (4082, 12510), (4170, 12246), (4710, 10842), (5004, 10205), (5421, 9420), (5652, 9035), (6123, 8340), (6255, 8164), (7065, 7228)]