256369280

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{727}}^1$

素因数の和:794

約数の個数: 128

約数和(自身を含む): 668304000

約数和(自身を除く): 411934720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 116, 128, 145, 152, 160, 190, 232, 290, 304, 320, 380, 464, 551, 580, 608, 640, 727, 760, 928, 1102, 1160, 1216, 1454, 1520, 1856, 2204, 2320, 2432, 2755, 2908, 3040, 3635, 3712, 4408, 4640, 5510, 5816, 6080, 7270, 8816, 9280, 11020, 11632, 12160, 13813, 14540, 17632, 18560, 21083, 22040, 23264, 27626, 29080, 35264, 42166, 44080, 46528, 55252, 58160, 69065, 70528, 84332, 88160, 93056, 105415, 110504, 116320, 138130, 168664, 176320, 210830, 221008, 232640, 276260, 337328, 352640, 400577, 421660, 442016, 465280, 552520, 674656, 801154, 843320, 884032, 1105040, 1349312, 1602308, 1686640, 1768064, 2002885, 2210080, 2698624, 3204616, 3373280, 4005770, 4420160, 6409232, 6746560, 8011540, 8840320, 12818464, 13493120, 16023080, 25636928, 32046160, 51273856, 64092320, 128184640, 256369280]

約数ペア:

[(1, 256369280), (2, 128184640), (4, 64092320), (5, 51273856), (8, 32046160), (10, 25636928), (16, 16023080), (19, 13493120), (20, 12818464), (29, 8840320), (32, 8011540), (38, 6746560), (40, 6409232), (58, 4420160), (64, 4005770), (76, 3373280), (80, 3204616), (95, 2698624), (116, 2210080), (128, 2002885), (145, 1768064), (152, 1686640), (160, 1602308), (190, 1349312), (232, 1105040), (290, 884032), (304, 843320), (320, 801154), (380, 674656), (464, 552520), (551, 465280), (580, 442016), (608, 421660), (640, 400577), (727, 352640), (760, 337328), (928, 276260), (1102, 232640), (1160, 221008), (1216, 210830), (1454, 176320), (1520, 168664), (1856, 138130), (2204, 116320), (2320, 110504), (2432, 105415), (2755, 93056), (2908, 88160), (3040, 84332), (3635, 70528), (3712, 69065), (4408, 58160), (4640, 55252), (5510, 46528), (5816, 44080), (6080, 42166), (7270, 35264), (8816, 29080), (9280, 27626), (11020, 23264), (11632, 22040), (12160, 21083), (13813, 18560), (14540, 17632)]