51151380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{121789}}^1$

素因数の和:121808

約数の個数: 48

約数和(自身を含む): 163685760

約数和(自身を除く): 112534380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 121789, 243578, 365367, 487156, 608945, 730734, 852523, 1217890, 1461468, 1705046, 1826835, 2435780, 2557569, 3410092, 3653670, 4262615, 5115138, 7307340, 8525230, 10230276, 12787845, 17050460, 25575690, 51151380]

約数ペア:

[(1, 51151380), (2, 25575690), (3, 17050460), (4, 12787845), (5, 10230276), (6, 8525230), (7, 7307340), (10, 5115138), (12, 4262615), (14, 3653670), (15, 3410092), (20, 2557569), (21, 2435780), (28, 1826835), (30, 1705046), (35, 1461468), (42, 1217890), (60, 852523), (70, 730734), (84, 608945), (105, 487156), (140, 365367), (210, 243578), (420, 121789)]