988895908

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 2410273152

約数和(自身を除く): 1421377244

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 31, 44, 52, 62, 77, 91, 124, 143, 154, 182, 217, 257, 286, 308, 341, 364, 403, 434, 514, 572, 682, 806, 868, 961, 1001, 1028, 1364, 1612, 1799, 1922, 2002, 2387, 2821, 2827, 3341, 3598, 3844, 4004, 4433, 4774, 5642, 5654, 6682, 6727, 7196, 7967, 8866, 9548, 10571, 11284, 11308, 12493, 13364, 13454, 15934, 17732, 19789, 21142, 23387, 24986, 26908, 31031, 31868, 36751, 39578, 42284, 46774, 49972, 55769, 62062, 73502, 73997, 79156, 87451, 87637, 93548, 103571, 111538, 124124, 137423, 147004, 147994, 174902, 175274, 207142, 223076, 246977, 257257, 274846, 295988, 349804, 350548, 414284, 493954, 514514, 549692, 613459, 724997, 961961, 987908, 1029028, 1139281, 1226918, 1449994, 1728839, 1923922, 2278562, 2453836, 2716747, 2899988, 3210701, 3457678, 3847844, 4557124, 5433494, 6421402, 6915356, 7974967, 10866988, 12842804, 15949934, 19017229, 22474907, 31899868, 35317711, 38034458, 44949814, 70635422, 76068916, 89899628, 141270844, 247223977, 494447954, 988895908]

約数ペア:

[(1, 988895908), (2, 494447954), (4, 247223977), (7, 141270844), (11, 89899628), (13, 76068916), (14, 70635422), (22, 44949814), (26, 38034458), (28, 35317711), (31, 31899868), (44, 22474907), (52, 19017229), (62, 15949934), (77, 12842804), (91, 10866988), (124, 7974967), (143, 6915356), (154, 6421402), (182, 5433494), (217, 4557124), (257, 3847844), (286, 3457678), (308, 3210701), (341, 2899988), (364, 2716747), (403, 2453836), (434, 2278562), (514, 1923922), (572, 1728839), (682, 1449994), (806, 1226918), (868, 1139281), (961, 1029028), (1001, 987908), (1028, 961961), (1364, 724997), (1612, 613459), (1799, 549692), (1922, 514514), (2002, 493954), (2387, 414284), (2821, 350548), (2827, 349804), (3341, 295988), (3598, 274846), (3844, 257257), (4004, 246977), (4433, 223076), (4774, 207142), (5642, 175274), (5654, 174902), (6682, 147994), (6727, 147004), (7196, 137423), (7967, 124124), (8866, 111538), (9548, 103571), (10571, 93548), (11284, 87637), (11308, 87451), (12493, 79156), (13364, 73997), (13454, 73502), (15934, 62062), (17732, 55769), (19789, 49972), (21142, 46774), (23387, 42284), (24986, 39578), (26908, 36751), (31031, 31868)]