645929508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{11959}}^1$

素因数の和:12616

約数の個数: 48

約数和(自身を含む): 1725301760

約数和(自身を除く): 1079372252

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 643, 1286, 1929, 2572, 3858, 4501, 7716, 9002, 11959, 13503, 18004, 23918, 27006, 35877, 47836, 54012, 71754, 83713, 143508, 167426, 251139, 334852, 502278, 1004556, 7689637, 15379274, 23068911, 30758548, 46137822, 53827459, 92275644, 107654918, 161482377, 215309836, 322964754, 645929508]

約数ペア:

[(1, 645929508), (2, 322964754), (3, 215309836), (4, 161482377), (6, 107654918), (7, 92275644), (12, 53827459), (14, 46137822), (21, 30758548), (28, 23068911), (42, 15379274), (84, 7689637), (643, 1004556), (1286, 502278), (1929, 334852), (2572, 251139), (3858, 167426), (4501, 143508), (7716, 83713), (9002, 71754), (11959, 54012), (13503, 47836), (18004, 35877), (23918, 27006)]