1916967520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{21433}}^1$

素因数の和:21504

約数の個数: 96

約数和(自身を含む): 4990864032

約数和(自身を除く): 3073896512

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 344, 416, 430, 520, 559, 688, 860, 1040, 1118, 1376, 1720, 2080, 2236, 2795, 3440, 4472, 5590, 6880, 8944, 11180, 17888, 21433, 22360, 42866, 44720, 85732, 89440, 107165, 171464, 214330, 278629, 342928, 428660, 557258, 685856, 857320, 921619, 1114516, 1393145, 1714640, 1843238, 2229032, 2786290, 3429280, 3686476, 4458064, 4608095, 5572580, 7372952, 8916128, 9216190, 11145160, 11981047, 14745904, 18432380, 22290320, 23962094, 29491808, 36864760, 44580640, 47924188, 59905235, 73729520, 95848376, 119810470, 147459040, 191696752, 239620940, 383393504, 479241880, 958483760, 1916967520]

約数ペア:

[(1, 1916967520), (2, 958483760), (4, 479241880), (5, 383393504), (8, 239620940), (10, 191696752), (13, 147459040), (16, 119810470), (20, 95848376), (26, 73729520), (32, 59905235), (40, 47924188), (43, 44580640), (52, 36864760), (65, 29491808), (80, 23962094), (86, 22290320), (104, 18432380), (130, 14745904), (160, 11981047), (172, 11145160), (208, 9216190), (215, 8916128), (260, 7372952), (344, 5572580), (416, 4608095), (430, 4458064), (520, 3686476), (559, 3429280), (688, 2786290), (860, 2229032), (1040, 1843238), (1118, 1714640), (1376, 1393145), (1720, 1114516), (2080, 921619), (2236, 857320), (2795, 685856), (3440, 557258), (4472, 428660), (5590, 342928), (6880, 278629), (8944, 214330), (11180, 171464), (17888, 107165), (21433, 89440), (22360, 85732), (42866, 44720)]