1609996780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^2$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 4195086336

約数和(自身を除く): 2585089556

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 127, 140, 155, 161, 217, 230, 254, 310, 322, 434, 460, 508, 620, 635, 644, 713, 805, 868, 889, 1085, 1270, 1426, 1610, 1778, 2170, 2540, 2852, 2921, 3220, 3556, 3565, 3937, 4340, 4445, 4991, 5842, 7130, 7874, 8890, 9982, 11684, 14260, 14605, 15748, 16129, 17780, 19685, 19964, 20447, 24955, 27559, 29210, 32258, 39370, 40894, 49910, 55118, 58420, 64516, 78740, 80645, 81788, 90551, 99820, 102235, 110236, 112903, 137795, 161290, 181102, 204470, 225806, 275590, 322580, 362204, 370967, 408940, 451612, 452755, 499999, 551180, 564515, 633857, 741934, 905510, 999998, 1129030, 1267714, 1483868, 1811020, 1854835, 1999996, 2258060, 2499995, 2535428, 2596769, 3169285, 3499993, 3709670, 4999990, 5193538, 6338570, 6999986, 7419340, 9999980, 10387076, 11499977, 12677140, 12983845, 13999972, 17499965, 22999954, 25967690, 34999930, 45999908, 51935380, 57499885, 69999860, 80499839, 114999770, 160999678, 229999540, 321999356, 402499195, 804998390, 1609996780]

約数ペア:

[(1, 1609996780), (2, 804998390), (4, 402499195), (5, 321999356), (7, 229999540), (10, 160999678), (14, 114999770), (20, 80499839), (23, 69999860), (28, 57499885), (31, 51935380), (35, 45999908), (46, 34999930), (62, 25967690), (70, 22999954), (92, 17499965), (115, 13999972), (124, 12983845), (127, 12677140), (140, 11499977), (155, 10387076), (161, 9999980), (217, 7419340), (230, 6999986), (254, 6338570), (310, 5193538), (322, 4999990), (434, 3709670), (460, 3499993), (508, 3169285), (620, 2596769), (635, 2535428), (644, 2499995), (713, 2258060), (805, 1999996), (868, 1854835), (889, 1811020), (1085, 1483868), (1270, 1267714), (1426, 1129030), (1610, 999998), (1778, 905510), (2170, 741934), (2540, 633857), (2852, 564515), (2921, 551180), (3220, 499999), (3556, 452755), (3565, 451612), (3937, 408940), (4340, 370967), (4445, 362204), (4991, 322580), (5842, 275590), (7130, 225806), (7874, 204470), (8890, 181102), (9982, 161290), (11684, 137795), (14260, 112903), (14605, 110236), (15748, 102235), (16129, 99820), (17780, 90551), (19685, 81788), (19964, 80645), (20447, 78740), (24955, 64516), (27559, 58420), (29210, 55118), (32258, 49910), (39370, 40894)]