245343410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{10909}}^1$

素因数の和:11102

約数の個数: 32

約数和(自身を含む): 478381680

約数和(自身を除く): 233038270

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 1730, 2249, 4498, 10909, 11245, 21818, 22490, 54545, 109090, 141817, 283634, 709085, 1418170, 1887257, 3774514, 9436285, 18872570, 24534341, 49068682, 122671705, 245343410]

約数ペア:

[(1, 245343410), (2, 122671705), (5, 49068682), (10, 24534341), (13, 18872570), (26, 9436285), (65, 3774514), (130, 1887257), (173, 1418170), (346, 709085), (865, 283634), (1730, 141817), (2249, 109090), (4498, 54545), (10909, 22490), (11245, 21818)]