287977480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{461}}^1$

素因数の和:599

約数の個数: 128

約数和(自身を含む): 782369280

約数和(自身を除く): 494391800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 97, 115, 140, 161, 184, 194, 230, 280, 322, 388, 460, 461, 485, 644, 679, 776, 805, 920, 922, 970, 1288, 1358, 1610, 1844, 1940, 2231, 2305, 2716, 3220, 3227, 3395, 3688, 3880, 4462, 4610, 5432, 6440, 6454, 6790, 8924, 9220, 10603, 11155, 12908, 13580, 15617, 16135, 17848, 18440, 21206, 22310, 25816, 27160, 31234, 32270, 42412, 44620, 44717, 53015, 62468, 64540, 74221, 78085, 84824, 89240, 89434, 106030, 124936, 129080, 148442, 156170, 178868, 212060, 223585, 296884, 312340, 313019, 357736, 371105, 424120, 447170, 593768, 624680, 626038, 742210, 894340, 1028491, 1252076, 1484420, 1565095, 1788680, 2056982, 2504152, 2968840, 3130190, 4113964, 5142455, 6260380, 7199437, 8227928, 10284910, 12520760, 14398874, 20569820, 28797748, 35997185, 41139640, 57595496, 71994370, 143988740, 287977480]

約数ペア:

[(1, 287977480), (2, 143988740), (4, 71994370), (5, 57595496), (7, 41139640), (8, 35997185), (10, 28797748), (14, 20569820), (20, 14398874), (23, 12520760), (28, 10284910), (35, 8227928), (40, 7199437), (46, 6260380), (56, 5142455), (70, 4113964), (92, 3130190), (97, 2968840), (115, 2504152), (140, 2056982), (161, 1788680), (184, 1565095), (194, 1484420), (230, 1252076), (280, 1028491), (322, 894340), (388, 742210), (460, 626038), (461, 624680), (485, 593768), (644, 447170), (679, 424120), (776, 371105), (805, 357736), (920, 313019), (922, 312340), (970, 296884), (1288, 223585), (1358, 212060), (1610, 178868), (1844, 156170), (1940, 148442), (2231, 129080), (2305, 124936), (2716, 106030), (3220, 89434), (3227, 89240), (3395, 84824), (3688, 78085), (3880, 74221), (4462, 64540), (4610, 62468), (5432, 53015), (6440, 44717), (6454, 44620), (6790, 42412), (8924, 32270), (9220, 31234), (10603, 27160), (11155, 25816), (12908, 22310), (13580, 21206), (15617, 18440), (16135, 17848)]