398919976

素因数分解:

$2^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 961632000

約数和(自身を除く): 562712024

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 53, 56, 91, 98, 104, 106, 182, 196, 211, 212, 343, 364, 371, 392, 422, 424, 637, 686, 689, 728, 742, 844, 1274, 1372, 1378, 1477, 1484, 1688, 2548, 2597, 2743, 2744, 2756, 2954, 2968, 4459, 4823, 5096, 5194, 5486, 5512, 5908, 8918, 9646, 10339, 10388, 10972, 11183, 11816, 17836, 18179, 19201, 19292, 20678, 20776, 21944, 22366, 33761, 35672, 36358, 38402, 38584, 41356, 44732, 67522, 72373, 72716, 76804, 78281, 82712, 89464, 134407, 135044, 144746, 145379, 145432, 153608, 156562, 236327, 268814, 270088, 289492, 290758, 313124, 472654, 537628, 547967, 578984, 581516, 626248, 940849, 945308, 1017653, 1075256, 1095934, 1163032, 1881698, 1890616, 2035306, 2191868, 3763396, 3835769, 4070612, 4383736, 7123571, 7526792, 7671538, 8141224, 14247142, 15343076, 28494284, 30686152, 49864997, 56988568, 99729994, 199459988, 398919976]

約数ペア:

[(1, 398919976), (2, 199459988), (4, 99729994), (7, 56988568), (8, 49864997), (13, 30686152), (14, 28494284), (26, 15343076), (28, 14247142), (49, 8141224), (52, 7671538), (53, 7526792), (56, 7123571), (91, 4383736), (98, 4070612), (104, 3835769), (106, 3763396), (182, 2191868), (196, 2035306), (211, 1890616), (212, 1881698), (343, 1163032), (364, 1095934), (371, 1075256), (392, 1017653), (422, 945308), (424, 940849), (637, 626248), (686, 581516), (689, 578984), (728, 547967), (742, 537628), (844, 472654), (1274, 313124), (1372, 290758), (1378, 289492), (1477, 270088), (1484, 268814), (1688, 236327), (2548, 156562), (2597, 153608), (2743, 145432), (2744, 145379), (2756, 144746), (2954, 135044), (2968, 134407), (4459, 89464), (4823, 82712), (5096, 78281), (5194, 76804), (5486, 72716), (5512, 72373), (5908, 67522), (8918, 44732), (9646, 41356), (10339, 38584), (10388, 38402), (10972, 36358), (11183, 35672), (11816, 33761), (17836, 22366), (18179, 21944), (19201, 20776), (19292, 20678)]