905815040

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:508

約数の個数: 176

約数和(自身を含む): 2421027840

約数和(自身を除く): 1515212800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 256, 260, 310, 320, 403, 416, 439, 496, 512, 520, 620, 640, 806, 832, 878, 992, 1024, 1040, 1240, 1280, 1612, 1664, 1756, 1984, 2015, 2080, 2195, 2480, 2560, 3224, 3328, 3512, 3968, 4030, 4160, 4390, 4960, 5120, 5707, 6448, 6656, 7024, 7936, 8060, 8320, 8780, 9920, 11414, 12896, 13312, 13609, 14048, 15872, 16120, 16640, 17560, 19840, 22828, 25792, 27218, 28096, 28535, 31744, 32240, 33280, 35120, 39680, 45656, 51584, 54436, 56192, 57070, 64480, 66560, 68045, 70240, 79360, 91312, 103168, 108872, 112384, 114140, 128960, 136090, 140480, 158720, 176917, 182624, 206336, 217744, 224768, 228280, 257920, 272180, 280960, 353834, 365248, 412672, 435488, 449536, 456560, 515840, 544360, 561920, 707668, 730496, 870976, 884585, 913120, 1031680, 1088720, 1123840, 1415336, 1460992, 1741952, 1769170, 1826240, 2063360, 2177440, 2247680, 2830672, 2921984, 3483904, 3538340, 3652480, 4354880, 5661344, 5843968, 6967808, 7076680, 7304960, 8709760, 11322688, 13935616, 14153360, 14609920, 17419520, 22645376, 28306720, 29219840, 34839040, 45290752, 56613440, 69678080, 90581504, 113226880, 181163008, 226453760, 452907520, 905815040]

約数ペア:

[(1, 905815040), (2, 452907520), (4, 226453760), (5, 181163008), (8, 113226880), (10, 90581504), (13, 69678080), (16, 56613440), (20, 45290752), (26, 34839040), (31, 29219840), (32, 28306720), (40, 22645376), (52, 17419520), (62, 14609920), (64, 14153360), (65, 13935616), (80, 11322688), (104, 8709760), (124, 7304960), (128, 7076680), (130, 6967808), (155, 5843968), (160, 5661344), (208, 4354880), (248, 3652480), (256, 3538340), (260, 3483904), (310, 2921984), (320, 2830672), (403, 2247680), (416, 2177440), (439, 2063360), (496, 1826240), (512, 1769170), (520, 1741952), (620, 1460992), (640, 1415336), (806, 1123840), (832, 1088720), (878, 1031680), (992, 913120), (1024, 884585), (1040, 870976), (1240, 730496), (1280, 707668), (1612, 561920), (1664, 544360), (1756, 515840), (1984, 456560), (2015, 449536), (2080, 435488), (2195, 412672), (2480, 365248), (2560, 353834), (3224, 280960), (3328, 272180), (3512, 257920), (3968, 228280), (4030, 224768), (4160, 217744), (4390, 206336), (4960, 182624), (5120, 176917), (5707, 158720), (6448, 140480), (6656, 136090), (7024, 128960), (7936, 114140), (8060, 112384), (8320, 108872), (8780, 103168), (9920, 91312), (11414, 79360), (12896, 70240), (13312, 68045), (13609, 66560), (14048, 64480), (15872, 57070), (16120, 56192), (16640, 54436), (17560, 51584), (19840, 45656), (22828, 39680), (25792, 35120), (27218, 33280), (28096, 32240), (28535, 31744)]