81990244

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{673}}^1$

素因数の和:932

約数の個数: 48

約数和(自身を含む): 173622400

約数和(自身を除く): 91632156

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 229, 266, 458, 532, 673, 916, 1346, 1603, 2692, 3206, 4351, 4711, 6412, 8702, 9422, 12787, 17404, 18844, 25574, 30457, 51148, 60914, 89509, 121828, 154117, 179018, 308234, 358036, 616468, 1078819, 2157638, 2928223, 4315276, 5856446, 11712892, 20497561, 40995122, 81990244]

約数ペア:

[(1, 81990244), (2, 40995122), (4, 20497561), (7, 11712892), (14, 5856446), (19, 4315276), (28, 2928223), (38, 2157638), (76, 1078819), (133, 616468), (229, 358036), (266, 308234), (458, 179018), (532, 154117), (673, 121828), (916, 89509), (1346, 60914), (1603, 51148), (2692, 30457), (3206, 25574), (4351, 18844), (4711, 17404), (6412, 12787), (8702, 9422)]