254910448

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:554

約数の個数: 80

約数和(自身を含む): 553839552

約数和(自身を除く): 298929104

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 71, 82, 104, 142, 164, 208, 284, 328, 421, 533, 568, 656, 842, 923, 1066, 1136, 1684, 1846, 2132, 2911, 3368, 3692, 4264, 5473, 5822, 6736, 7384, 8528, 10946, 11644, 14768, 17261, 21892, 23288, 29891, 34522, 37843, 43784, 46576, 59782, 69044, 75686, 87568, 119564, 138088, 151372, 224393, 239128, 276176, 302744, 388583, 448786, 478256, 605488, 777166, 897572, 1225531, 1554332, 1795144, 2451062, 3108664, 3590288, 4902124, 6217328, 9804248, 15931903, 19608496, 31863806, 63727612, 127455224, 254910448]

約数ペア:

[(1, 254910448), (2, 127455224), (4, 63727612), (8, 31863806), (13, 19608496), (16, 15931903), (26, 9804248), (41, 6217328), (52, 4902124), (71, 3590288), (82, 3108664), (104, 2451062), (142, 1795144), (164, 1554332), (208, 1225531), (284, 897572), (328, 777166), (421, 605488), (533, 478256), (568, 448786), (656, 388583), (842, 302744), (923, 276176), (1066, 239128), (1136, 224393), (1684, 151372), (1846, 138088), (2132, 119564), (2911, 87568), (3368, 75686), (3692, 69044), (4264, 59782), (5473, 46576), (5822, 43784), (6736, 37843), (7384, 34522), (8528, 29891), (10946, 23288), (11644, 21892), (14768, 17261)]