261337216

素因数分解:

$2^7\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7883}}^1$

素因数の和:7941

約数の個数: 64

約数和(自身を含む): 611167680

約数和(自身を除く): 349830464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 56, 64, 74, 112, 128, 148, 224, 259, 296, 448, 518, 592, 896, 1036, 1184, 2072, 2368, 4144, 4736, 7883, 8288, 15766, 16576, 31532, 33152, 55181, 63064, 110362, 126128, 220724, 252256, 291671, 441448, 504512, 583342, 882896, 1009024, 1166684, 1765792, 2041697, 2333368, 3531584, 4083394, 4666736, 7063168, 8166788, 9333472, 16333576, 18666944, 32667152, 37333888, 65334304, 130668608, 261337216]

約数ペア:

[(1, 261337216), (2, 130668608), (4, 65334304), (7, 37333888), (8, 32667152), (14, 18666944), (16, 16333576), (28, 9333472), (32, 8166788), (37, 7063168), (56, 4666736), (64, 4083394), (74, 3531584), (112, 2333368), (128, 2041697), (148, 1765792), (224, 1166684), (259, 1009024), (296, 882896), (448, 583342), (518, 504512), (592, 441448), (896, 291671), (1036, 252256), (1184, 220724), (2072, 126128), (2368, 110362), (4144, 63064), (4736, 55181), (7883, 33152), (8288, 31532), (15766, 16576)]