256131288

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{169399}}^1$

素因数の和:169421

約数の個数: 64

約数和(自身を含む): 813120000

約数和(自身を除く): 556988712

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 169399, 338798, 508197, 677596, 1016394, 1185793, 1355192, 1524591, 2032788, 2371586, 3049182, 3557379, 4065576, 4573773, 4743172, 6098364, 7114758, 9147546, 9486344, 10672137, 12196728, 14229516, 18295092, 21344274, 28459032, 32016411, 36590184, 42688548, 64032822, 85377096, 128065644, 256131288]

約数ペア:

[(1, 256131288), (2, 128065644), (3, 85377096), (4, 64032822), (6, 42688548), (7, 36590184), (8, 32016411), (9, 28459032), (12, 21344274), (14, 18295092), (18, 14229516), (21, 12196728), (24, 10672137), (27, 9486344), (28, 9147546), (36, 7114758), (42, 6098364), (54, 4743172), (56, 4573773), (63, 4065576), (72, 3557379), (84, 3049182), (108, 2371586), (126, 2032788), (168, 1524591), (189, 1355192), (216, 1185793), (252, 1016394), (378, 677596), (504, 508197), (756, 338798), (1512, 169399)]