30981272

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 69120000

約数和(自身を除く): 38138728

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 79, 94, 149, 158, 188, 298, 316, 329, 376, 553, 596, 632, 658, 1043, 1106, 1192, 1316, 2086, 2212, 2632, 3713, 4172, 4424, 7003, 7426, 8344, 11771, 14006, 14852, 23542, 25991, 28012, 29704, 47084, 49021, 51982, 56024, 82397, 94168, 98042, 103964, 164794, 196084, 207928, 329588, 392168, 553237, 659176, 1106474, 2212948, 3872659, 4425896, 7745318, 15490636, 30981272]

約数ペア:

[(1, 30981272), (2, 15490636), (4, 7745318), (7, 4425896), (8, 3872659), (14, 2212948), (28, 1106474), (47, 659176), (56, 553237), (79, 392168), (94, 329588), (149, 207928), (158, 196084), (188, 164794), (298, 103964), (316, 98042), (329, 94168), (376, 82397), (553, 56024), (596, 51982), (632, 49021), (658, 47084), (1043, 29704), (1106, 28012), (1192, 25991), (1316, 23542), (2086, 14852), (2212, 14006), (2632, 11771), (3713, 8344), (4172, 7426), (4424, 7003)]