19457672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 42504000

約数和(自身を除く): 23046328

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 43, 52, 76, 86, 104, 152, 172, 229, 247, 344, 458, 494, 559, 817, 916, 988, 1118, 1634, 1832, 1976, 2236, 2977, 3268, 4351, 4472, 5954, 6536, 8702, 9847, 10621, 11908, 17404, 19694, 21242, 23816, 34808, 39388, 42484, 56563, 78776, 84968, 113126, 128011, 187093, 226252, 256022, 374186, 452504, 512044, 748372, 1024088, 1496744, 2432209, 4864418, 9728836, 19457672]

約数ペア:

[(1, 19457672), (2, 9728836), (4, 4864418), (8, 2432209), (13, 1496744), (19, 1024088), (26, 748372), (38, 512044), (43, 452504), (52, 374186), (76, 256022), (86, 226252), (104, 187093), (152, 128011), (172, 113126), (229, 84968), (247, 78776), (344, 56563), (458, 42484), (494, 39388), (559, 34808), (817, 23816), (916, 21242), (988, 19694), (1118, 17404), (1634, 11908), (1832, 10621), (1976, 9847), (2236, 8702), (2977, 6536), (3268, 5954), (4351, 4472)]