256475338

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{1637}}^1$

素因数の和:1715

約数の個数: 48

約数和(自身を含む): 479291904

約数和(自身を除く): 222816566

約数列:

[1, 2, 7, 14, 19, 31, 38, 62, 133, 217, 266, 361, 434, 589, 722, 1178, 1637, 2527, 3274, 4123, 5054, 8246, 11191, 11459, 22382, 22918, 31103, 50747, 62206, 78337, 101494, 156674, 217721, 355229, 435442, 590957, 710458, 964193, 1181914, 1928386, 4136699, 6749351, 8273398, 13498702, 18319667, 36639334, 128237669, 256475338]

約数ペア:

[(1, 256475338), (2, 128237669), (7, 36639334), (14, 18319667), (19, 13498702), (31, 8273398), (38, 6749351), (62, 4136699), (133, 1928386), (217, 1181914), (266, 964193), (361, 710458), (434, 590957), (589, 435442), (722, 355229), (1178, 217721), (1637, 156674), (2527, 101494), (3274, 78337), (4123, 62206), (5054, 50747), (8246, 31103), (11191, 22918), (11459, 22382)]