208880984

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2857}}^1$

素因数の和:2932

約数の個数: 64

約数和(自身を含む): 456136800

約数和(自身を除く): 247255816

約数列:

[1, 2, 4, 8, 13, 19, 26, 37, 38, 52, 74, 76, 104, 148, 152, 247, 296, 481, 494, 703, 962, 988, 1406, 1924, 1976, 2812, 2857, 3848, 5624, 5714, 9139, 11428, 18278, 22856, 36556, 37141, 54283, 73112, 74282, 105709, 108566, 148564, 211418, 217132, 297128, 422836, 434264, 705679, 845672, 1374217, 1411358, 2008471, 2748434, 2822716, 4016942, 5496868, 5645432, 8033884, 10993736, 16067768, 26110123, 52220246, 104440492, 208880984]

約数ペア:

[(1, 208880984), (2, 104440492), (4, 52220246), (8, 26110123), (13, 16067768), (19, 10993736), (26, 8033884), (37, 5645432), (38, 5496868), (52, 4016942), (74, 2822716), (76, 2748434), (104, 2008471), (148, 1411358), (152, 1374217), (247, 845672), (296, 705679), (481, 434264), (494, 422836), (703, 297128), (962, 217132), (988, 211418), (1406, 148564), (1924, 108566), (1976, 105709), (2812, 74282), (2857, 73112), (3848, 54283), (5624, 37141), (5714, 36556), (9139, 22856), (11428, 18278)]