905557120

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3511}}^1$

素因数の和:3574

約数の個数: 128

約数和(自身を含む): 2407265280

約数和(自身を除く): 1501708160

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, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1612, 1664, 1984, 2015, 2080, 2480, 3224, 3511, 3968, 4030, 4160, 4960, 6448, 7022, 8060, 8320, 9920, 12896, 14044, 16120, 17555, 19840, 25792, 28088, 32240, 35110, 45643, 51584, 56176, 64480, 70220, 91286, 108841, 112352, 128960, 140440, 182572, 217682, 224704, 228215, 257920, 280880, 365144, 435364, 449408, 456430, 544205, 561760, 730288, 870728, 912860, 1088410, 1123520, 1414933, 1460576, 1741456, 1825720, 2176820, 2247040, 2829866, 2921152, 3482912, 3651440, 4353640, 5659732, 5842304, 6965824, 7074665, 7302880, 8707280, 11319464, 13931648, 14149330, 14605760, 17414560, 22638928, 28298660, 29211520, 34829120, 45277856, 56597320, 69658240, 90555712, 113194640, 181111424, 226389280, 452778560, 905557120]

約数ペア:

[(1, 905557120), (2, 452778560), (4, 226389280), (5, 181111424), (8, 113194640), (10, 90555712), (13, 69658240), (16, 56597320), (20, 45277856), (26, 34829120), (31, 29211520), (32, 28298660), (40, 22638928), (52, 17414560), (62, 14605760), (64, 14149330), (65, 13931648), (80, 11319464), (104, 8707280), (124, 7302880), (128, 7074665), (130, 6965824), (155, 5842304), (160, 5659732), (208, 4353640), (248, 3651440), (260, 3482912), (310, 2921152), (320, 2829866), (403, 2247040), (416, 2176820), (496, 1825720), (520, 1741456), (620, 1460576), (640, 1414933), (806, 1123520), (832, 1088410), (992, 912860), (1040, 870728), (1240, 730288), (1612, 561760), (1664, 544205), (1984, 456430), (2015, 449408), (2080, 435364), (2480, 365144), (3224, 280880), (3511, 257920), (3968, 228215), (4030, 224704), (4160, 217682), (4960, 182572), (6448, 140440), (7022, 128960), (8060, 112352), (8320, 108841), (9920, 91286), (12896, 70220), (14044, 64480), (16120, 56176), (17555, 51584), (19840, 45643), (25792, 35110), (28088, 32240)]