789778880

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2521}}^1$

素因数の和:2638

約数の個数: 112

約数和(自身を含む): 2075505120

約数和(自身を除く): 1285726240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 89, 110, 160, 176, 178, 220, 320, 352, 356, 440, 445, 704, 712, 880, 890, 979, 1424, 1760, 1780, 1958, 2521, 2848, 3520, 3560, 3916, 4895, 5042, 5696, 7120, 7832, 9790, 10084, 12605, 14240, 15664, 19580, 20168, 25210, 27731, 28480, 31328, 39160, 40336, 50420, 55462, 62656, 78320, 80672, 100840, 110924, 138655, 156640, 161344, 201680, 221848, 224369, 277310, 313280, 403360, 443696, 448738, 554620, 806720, 887392, 897476, 1109240, 1121845, 1774784, 1794952, 2218480, 2243690, 2468059, 3589904, 4436960, 4487380, 4936118, 7179808, 8873920, 8974760, 9872236, 12340295, 14359616, 17949520, 19744472, 24680590, 35899040, 39488944, 49361180, 71798080, 78977888, 98722360, 157955776, 197444720, 394889440, 789778880]

約数ペア:

[(1, 789778880), (2, 394889440), (4, 197444720), (5, 157955776), (8, 98722360), (10, 78977888), (11, 71798080), (16, 49361180), (20, 39488944), (22, 35899040), (32, 24680590), (40, 19744472), (44, 17949520), (55, 14359616), (64, 12340295), (80, 9872236), (88, 8974760), (89, 8873920), (110, 7179808), (160, 4936118), (176, 4487380), (178, 4436960), (220, 3589904), (320, 2468059), (352, 2243690), (356, 2218480), (440, 1794952), (445, 1774784), (704, 1121845), (712, 1109240), (880, 897476), (890, 887392), (979, 806720), (1424, 554620), (1760, 448738), (1780, 443696), (1958, 403360), (2521, 313280), (2848, 277310), (3520, 224369), (3560, 221848), (3916, 201680), (4895, 161344), (5042, 156640), (5696, 138655), (7120, 110924), (7832, 100840), (9790, 80672), (10084, 78320), (12605, 62656), (14240, 55462), (15664, 50420), (19580, 40336), (20168, 39160), (25210, 31328), (27731, 28480)]