8621440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 21726000

約数和(自身を除く): 13104560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 304, 320, 380, 608, 640, 709, 760, 1216, 1418, 1520, 2432, 2836, 3040, 3545, 5672, 6080, 7090, 11344, 12160, 13471, 14180, 22688, 26942, 28360, 45376, 53884, 56720, 67355, 90752, 107768, 113440, 134710, 215536, 226880, 269420, 431072, 453760, 538840, 862144, 1077680, 1724288, 2155360, 4310720, 8621440]

約数ペア:

[(1, 8621440), (2, 4310720), (4, 2155360), (5, 1724288), (8, 1077680), (10, 862144), (16, 538840), (19, 453760), (20, 431072), (32, 269420), (38, 226880), (40, 215536), (64, 134710), (76, 113440), (80, 107768), (95, 90752), (128, 67355), (152, 56720), (160, 53884), (190, 45376), (304, 28360), (320, 26942), (380, 22688), (608, 14180), (640, 13471), (709, 12160), (760, 11344), (1216, 7090), (1418, 6080), (1520, 5672), (2432, 3545), (2836, 3040)]