256633390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{11411}}^1$

素因数の和:11604

約数の個数: 32

約数和(自身を含む): 500393376

約数和(自身を除く): 243759986

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 173, 346, 865, 1730, 2249, 4498, 11245, 11411, 22490, 22822, 57055, 114110, 148343, 296686, 741715, 1483430, 1974103, 3948206, 9870515, 19741030, 25663339, 51326678, 128316695, 256633390]

約数ペア:

[(1, 256633390), (2, 128316695), (5, 51326678), (10, 25663339), (13, 19741030), (26, 9870515), (65, 3948206), (130, 1974103), (173, 1483430), (346, 741715), (865, 296686), (1730, 148343), (2249, 114110), (4498, 57055), (11245, 22822), (11411, 22490)]