263265920

素因数分解:

$2^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 128

約数和(自身を含む): 658022400

約数和(自身を除く): 394756480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 79, 80, 82, 127, 128, 158, 160, 164, 205, 254, 316, 320, 328, 395, 410, 508, 632, 635, 640, 656, 790, 820, 1016, 1264, 1270, 1312, 1580, 1640, 2032, 2528, 2540, 2624, 3160, 3239, 3280, 4064, 5056, 5080, 5207, 5248, 6320, 6478, 6560, 8128, 10033, 10112, 10160, 10414, 12640, 12956, 13120, 16195, 16256, 20066, 20320, 20828, 25280, 25912, 26035, 26240, 32390, 40132, 40640, 41656, 50165, 50560, 51824, 52070, 64780, 80264, 81280, 83312, 100330, 103648, 104140, 129560, 160528, 166624, 200660, 207296, 208280, 259120, 321056, 333248, 401320, 411353, 414592, 416560, 518240, 642112, 666496, 802640, 822706, 833120, 1036480, 1284224, 1605280, 1645412, 1666240, 2056765, 2072960, 3210560, 3290824, 3332480, 4113530, 6421120, 6581648, 8227060, 13163296, 16454120, 26326592, 32908240, 52653184, 65816480, 131632960, 263265920]

約数ペア:

[(1, 263265920), (2, 131632960), (4, 65816480), (5, 52653184), (8, 32908240), (10, 26326592), (16, 16454120), (20, 13163296), (32, 8227060), (40, 6581648), (41, 6421120), (64, 4113530), (79, 3332480), (80, 3290824), (82, 3210560), (127, 2072960), (128, 2056765), (158, 1666240), (160, 1645412), (164, 1605280), (205, 1284224), (254, 1036480), (316, 833120), (320, 822706), (328, 802640), (395, 666496), (410, 642112), (508, 518240), (632, 416560), (635, 414592), (640, 411353), (656, 401320), (790, 333248), (820, 321056), (1016, 259120), (1264, 208280), (1270, 207296), (1312, 200660), (1580, 166624), (1640, 160528), (2032, 129560), (2528, 104140), (2540, 103648), (2624, 100330), (3160, 83312), (3239, 81280), (3280, 80264), (4064, 64780), (5056, 52070), (5080, 51824), (5207, 50560), (5248, 50165), (6320, 41656), (6478, 40640), (6560, 40132), (8128, 32390), (10033, 26240), (10112, 26035), (10160, 25912), (10414, 25280), (12640, 20828), (12956, 20320), (13120, 20066), (16195, 16256)]